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PMS 448

PMS 448

PMS 448

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Swivel – Cargo, 3000 lb. Capacity

NFES #
000526
Category
Aviation
Updated
Storage and Shelf Life Checks
None

 

 

Cargo Swivel, 3000 lb. capacity.

Initial Inspection/Disposal Criteria

  1. Inspect swivel for rotation: Swivel shall rotate freely by hand (no binding) with no load. If swivel does not rotate freely, remove from service. If binding is suspected, perform the following free rotation test. Using a string, hang a 2 lb. weight to the hook. Close the hook and rotate the swivel slowly in one direction and then the other. The speed of rotation shall not be greater than 1 revolution in 5 seconds. If the binding of the swivel results in the string being carried around the rotation, remove the swivel from service.
Line art of swivel rotation sideview line art of top view of swivel rotation Figure 1. Free Rotation Test with 2 lb. Weight
 
  1. Inspect for excessive lateral movement of the swivel. Excessive lateral movement is defined as 5 degrees (angular measurement) of total movement and may indicate bearing wear. Remove from service.

 

Detail of excessive swivel movement. Figure 2. Excessive Lateral Movement

 

  1. Inspect hook and linkage for damage, wear, and deformation:
    1. Inspect swivel rotating body or hook for any cracks or gouges. If cracks or gouges are found, remove from service.
    2. Inspect gate for type. If the gate is a spring gate (the hook opens by pushing the gate into the hook) it is an old style hook and needs replacement. Remove the swivel from service and refer to NFES :Cache Memorandum No. 04-03, Cargo Swivel Retrofit Project dated 8/10/04.
    3. Inspect the swivel for the dimensions shown in Figure 3 and Table 1. If dimensions exceed those in Table 1, remove the swivel from service.
    4. Inspect the hook for the dimensions shown in Figure 4 and Table 2. If dimensions exceed those in Table 2, remove the swivel from service.
    5. Check the hook for damage such as cracks, nicks, wear, gouges, and deformation. Check operation and ensure that hook is not bent or distorted. If any damage is found, then remove from service.
Image of swivel dimensions on left, shank hook on right. Figure 3. Swivel Dimensions; Figure 4. Shank Hook

 

Table 1. Swivel dimensions
Style C D
3000 pounds 3 to 5 inch max 5/8 inch nominal
6000 pounds  3 to 5 inch max 5/8 inch nominal
Table 2. Shank Hook Dimensions
Style A (max) B (max)
3000 pounds 1.0 inch 1.33 inch
6000 pounds 1.3 inch 1.7 inch

 

  1. Check the hook’s locking gate operation.
    • Ensure safety latch open and close completely.
    • Examine latch for damage or distortion.
    • Examine lock latch for rounded lock shoulder, see Figure 5
    • Ensure spring loaded latch hold the latch in the closed position.
    • Ensure lock latch pin is secure and flush with the latch, see Figure 5. If latch is damaged, does not operate as required, is missing hardware, or does not meet dimensional requirements remove from service.

 

Figure 5. Examine Gate Lock Latch for rounding.
  image showing Gate Lock Latch inspection for rounding Line art showing detail of where to look for Gate Lock Latch rounding.

 

Check for rounding of lock shoulder here

 

  1. Inspect the link and link fastener.
    • Check for damage such as cracks, nicks, wear, and gouges.
    • Check link for deformations. The curved ends of the link (either oblong or pear) should be generally circular in shape. If overstressing has occurred, the end portions of the link will appear “pinched.”  Figure 6 shows the pinched effect of overstressed parts.
    • If the link is attached to the swivel with a threaded fastener with nut:
      • Ensure that no more than 2 threads are exposed.
      • Ensure that the fastener has not slipped by inspecting the paint indication. Paint lines that line up indicate no slippage,see Figure 7. If slippage is indicated, refurbish as necessary or dispose of item.
      • Inspect the fastener and nut for damage (cracks and gouges).
        • If the link is attached with a pin secured with roll pins, ensure that the roll pins are not bent or cracked.
        • If damage is observed, refurbish as necessary or dispose of item.

Figure 6. Normal and "pinched" link shapes.
  Normal link. Pinched link. Normal pear link. Pinched pear link. Normal Pinched Normal Pinched
Figure 7. Slippage paint indication.

 

 Picture of bolts showing slippage paint indication.

 

  1. Return to stock if swivel is in sealed packaging and showing signs of usage.
  2. Refurbish if swivel has been removed from packaging, is in a used condition, or if deficiencies have been identified in inspection.
  3. Dispose of swivel if it fails Initial Inspection or Testing for Performance and repairs are not economical feasible to complete.

 

Refurbishing Procedure

A. Cleaning

  1. Wipe clean. Paint as needed.

B. Repair

Never repair, alter, rework, or reshape a hook, link, or swivel. Return to the manufacturer or qualified rigging company for repair.

  1. Swivel rotation binding and lateral movement repairs. These repairs shall be performed by the manufacturer or certified/qualified rigging facility. The typical repair is the replacement of the bearing.  If the bearing is replaced, the replacement bearing shall be capable of a bearing load 3.75 times the swivel’s rated capacity.
  2. Hook and link problems. The hooks and links of a swivel shall not be altered, rework, or reshaped.  They may be replaced.  Replacement components shall have a strength capacity of 3.75 times the load carrying capacity of the swivel. Return the swivel to the manufacturer or certified rigging facility for all replacement parts or repairs.
  3. Repaint the fastener slip indicator when necessary.  Paint as shown in Figure 7.
  4. All above repaired swivels (including replaced components) shall be tested per Testing for Performance.
  5. Link retaining fastener: Threaded link retaining fasteners that use a bolt and self-locking nut may be retightened in accordance with the Table 3: Link Fastener Torque Values. Paint fasteners as shown in Figure 7. Other fastener systems shall be sent to the manufacturer to be repair.

Table 3. Link Fastener Torque Values
Fastener Size Torque (Ft-lbs.)
5/16 12
3/8 20
7/16 25
1/2 30

 

C. Testing for performance

  1. Repairs must be performed and tested by the manufacturer or certified/qualified rigging facility.
  2. Each and every repaired swivel shall be strength tested to 2.0 times its rated capacity. The swivel shall be placed into a tensile style loading device that has a current calibration. The swivel shall be tensile loaded to 2.0 times the rated capacity of the swivel. The swivel shall not show any signs of damage due to loading.
  3. Each and every swivel whose bearing is repaired shall pass the following tests:
    1. Free rotation. Open the hook. Rotate the swivel until the ‘jaw’ of the hook is down. Rotate the swivel slowly in one direction and then the other. The speed of rotation shall not be greater than 1 revolution in 5 seconds. The jaw should be held (due to gravity) to an orientation less than 135 degrees from vertical, see Figure 8. If the binding of the swivel results in the jaw of the hook rotating over the top the repair is unacceptable.
    2. The lateral movement test described in Initial Inspection/Disposal Criteria #2, except that maximum lateral movement shall be less than 2 degrees, see Figure 2.
Figure 8. Free Totation, Unloaded.
  swivel show from top and the 135 degree rotation. Swivel with latch in open position.
  1. All replacement hardware (links, bearings, hooks) shall have a working load limit equal or greater than the working load limit of the corresponding swivel; and have a minimum ultimate strength equal to 11,250 pounds for 3000-lb capacity swivels and 22,500 pounds for 6,000-lb capacity swivels. Links and hooks shall meet the requirements of USDA Forest Service Specification for Swivel, 5100-506 for 6,000-lb swivels and 5100-501a for 3,000-lb swivels.
  2. For replaced shank style hooks, the threading of the hook shall follow the hook manufacturer’s recommendations.

D. Repackaging

  1. NFES #000526 package 6 each in NFES #008018 carton (12” x 12” x 6”).
  2. NFES #000286 package local cache option.

 

Reference

NFES Cache Memo No. 04-03

6,000 POUND SWIVEL HOOK, EXTERNAL, HELICOPTER, Specification 5100-506 

3,000 POUND SWIVEL HOOK, EXTERNAL, HELICOPTER, Specification 5100-501a 

 

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NWCG Latest Announcements

The Experiential Learning Subcommittee is looking for your feedback on Staff Rides

Date: September 20, 2024
Contact: Ashleigh D'Antonio and George Risko, Leadership Committee

The Experiential Learning Subcommittee needs to hear from the field about where the greatest need lies regarding staff rides and their accessibility.

  • Do you have an event you would like to turn into a learning experience?
  • Do you have a staff ride built, but are struggling to implement the delivery?
  • Do you need help building capacity?
  • What other ideas do you have to support experiential leadership training?

Fill out this short survey below to help us help you.

References:

Staff Rides: Feedback

Staff Rides

Updated NWCG Single Resource Casual Hire Information, PMS 934

Date: September 19, 2024
Contact: Incident Business Committee

The Incident Business Committee has updated the NWCG Single Resource Casual Hire Information, PMS 934. This update expands the provisions for hiring emergency personnel.

References:

NWCG Single Resource Casual Hire Information, PMS 934

IBC Memorandum 24-03

NWCG 2024 Spring/Summer Highlights

Date: September 13, 2024

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U.S. Fire Administration
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International Association of Fire Chiefs
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Welcome to our latest highlights from the National Wildfire Coordinating Group, where we explore the latest updates, insights, and efforts that develop interoperable wildland fire operations among federal, state, local, Tribal, and territorial partners.

The Performance Support Package, which for ABRO includes the Incident Position Standards and Next Generation Position Task Book were developed through the Incident Performance and Training Modernization (IPTM) effort. The Performance Support Package will support trainees, those qualified in the position, and evaluators.
 

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NASA JOINS NWCG!

The National Aeronautics and Space Administration (NASA) is officially an associate member of NWCG. As such, NASA is beginning to collaborate with wildland fire management agencies with the goal of increasing collaboration across agencies and leveraging NASA data, technology, and innovation for nation-wide efforts in wildland fire management. NASA has a rich history of research, development, and technology transfer in the areas of Earth science, space technologies, and aeronautics that support the NWCG mission.

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NWCG new website look.

WWW.NWCG.GOV HAS A NEW LOOK AND DESIGN

The NWCG web team dedicated the past two years to making a significant upgrade to the www.nwcg.gov site. This upgrade involved a comprehensive redesign of over 7,700 web pages.

The modernization of NWCG’s website involved migrating to Drupal 10, a cutting—edge content management system, and leveraging Amazon Web Service GovCloud for secure and efficient hosting. These upgrades help ensure that the NWCG website remains current in content management practices, offering enhanced customization, improved performance, and an overall superior user experience.

NWCG Leadership Committee

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WFLDP PRP book covers

The Wildland Fire Leadership Development Program announced the Professional Reading Program’s 2024 list!

The years books include:

  • Young Men and Fire by Norman Maclean
  • The Wisdom of the Bullfrog by William H. McRaven
  • The Art of Clear Thinking by Hasard Lee
  • Emotional Agility by Susan David
  • Writing to Persuade by Trish Hall

Learn more at the NWCG Leadership Committee

INCIDENT PERFORMANCE AND TRAINING MODERNIZATION

In 2023, NWCG kicked off the Incident Performance and Training Modernization (IPTM) effort. A training system overhaul focused on developing a performance-based training system designed to shift training to on-the-job when appropriate.

Over the next five years, NWCG intends to analyze all positions within the NWCG Standards for Wildland Fire Position Qualifications, PMS 310-1. To date we are currently working on 30 incident positions, and planning for 20+ in calendar year 2025.

Subject Matter Experts from a variety of geographical areas and agencies recently completed the position analysis for 16 positions. From this analysis, Incident Positions Standards and a Next Generation Position Task Book will be developed for each position.

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Incident Performance and Training Modernization

NEXT GENERATION POSITION TASK BOOK

In April 2024, NWCG launched the new Next Generation Position Task Book (Next Gen PTB) which is a key component of the IPTM effort. This revised evaluation tool is designed to work in conjunction with the newly developed Incident Position Standards.

Major Next Gen PTB changes:

  • Structured to improve constructive conversations between evaluators and trainees.
  • Reference new Incident Position Standards.
  • Include only tasks required to be evaluated for successful performance.
  • Trainees will be rated on their performance vs. initialing whether a task was completed.
  • Must include written feedback when trainee does not meet the standard.
  • Will be position specific (no combined PTBs).
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Screen shot of the Next Gen Position Task Book
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Banner image of the Wildland Fire Learning Portal website

NWCG’s training course catalog is now available on the Wildland Fire Learning Portal (WFLP).

To access the training course catalog, visit WFLP and either set up an account or login as a guest.

 

 

The Incident Position Standards and Next Generation Position Task Book are now available for Aircraft Base Radio Operator (ABRO)

Date: September 12, 2024
Contact: Interagency Helicopter Operations Subcommittee

NWCG is excited to announce that the NWCG Incident Position Standards for Aircraft Base Radio Operator, PMS 350-87 and NWCG Position Task Book for Aircraft Base Radio Operator (ABRO), PMS 311-87 are now available.

The Performance Support Package, which for ABRO includes the Incident Position Standards and Next Generation Position Task Book were developed through the Incident Performance and Training Modernization (IPTM) effort. The Performance Support Package will support trainees, those qualified in the position, and evaluators.

References:

NWCG Aircraft Base Radio Operator Position Page

NWCG Incident Position Standards for Aircraft Base Radio Operator, PMS 350-87

NWCG Position Task Book for Aircraft Base Radio Operator, PMS 311-87