UH-1-05-ASAM-01 Transmission Oil Line System QD

Originally posted 4-15-14 on UH1OPS Blog

UNCLASSIFIED . MSG DTG 202310Z JAN 05 . FROM CDRAMCOM, REDSTONE ARSENAL, AL //AMSAM-SF-A// . SUBJECT - AVIATION SAFETY ACTION MESSAGE (ASAM), MAINTENANCE MANDATORY, RCS CSGLD-1860(R1), UH-1 AIRCRAFT, TRANSMISSION OIL SYSTEM QUICK DISCONNECTS, UH-1-05-ASAM-01. .... ...................NOTE................... ....This message is effective until rescinded or superseded. .... ...................NOTE................... ....This message is issued IAW AR 95-1 and has not been ....transmitted to units subordinate to addressees. ....Addressees will immediately retransmit this message ....to all subordinate units, activities or elements ....affected or concerned. MACOMs will immediately ....verify this transmission to the AMCOM SOF Compliance ....Officer (AMSAM-SF-A, safeadm@redstone.army.mil). .... ...................NOTE................... ....MACOM commanders may authorize temporary exception from ....message requirements IAW AR 95-1, Ch 6. Exception may ....only occur when combat operations or matter of life or ....death in civil disasters or other emergencies are so ....urgent that they override the consequences of continued ....aircraft operation. .... 1. SUMMARY - 1.1. Background - AMCOM received a report that an airborne UH-1H cockpit transmission oil pressure gauge went to zero oil pressure. Flight was continued for 5 minutes and after landing at the home base camp the transmission seized during coast down. An investigation determined that one of the two quick disconnects affiliated with the transmission oil system had malfunctioned (internally closed the poppet valve) and cut off the flow of oil to the transmission. This quick disconnect is normally inspected at the Preventive Maintenance Daily and at Phase. Those inspections will continue until the quick disconnect is replaced. 1.2. Message Purpose - To require removal of transmission oil system quick disconnects and replace with one-piece fittings. 2. END ITEMS AFFECTED - All UH-1 series aircraft. 3. ASSEMBLIES/COMPONENTS/PARTS AFFECTED - Suspect/discrepant assemblies/components/parts - ..Nomenclature PN NSN ..Coupling half, quick disconnect 375200-12 4730-00-067-4808 ..Coupling half, quick disconnect 375504-12 4730-00-773-2621 .... ...................NOTE................... ....When complying with the requirements of this message, ....complete forms and records entries IAW DA PAM 738-751. ....ULLS-A units will use appropriate "E" forms. .... 4. INITIAL TAMMS (THE ARMY MAINTENANCE MANAGEMENT SYSTEM) COMPLIANCE REQUIREMENTS - 4.1. Upon receipt of this message, make the following entry on the DA Form 2408-13-1. Enter a Red Horizontal Dash //-// status symbol with the following statement: "Comply with requirements of UH-1-05-ASAM-01 before [####.#] aircraft hours, but NLT 20 March 2005." Calculate [####.#] as current aircraft flight hours plus 30 hours. Commanders who are unable to comply with the requirements of this message within the time frame specified will upgrade the affected aircraft status symbol to a Red //X//. .... ...................NOTE................... ....The TAMMS compliance reporting form is available at ...."www.redstone.army.mil/sof/tamms.xls" (use lower case ....letters only) or may be obtained from the units ....servicing LAR. Alternate forms may be approved by ....the AMCOM SOF Compliance Officer. .... ...................NOTE................... ....The TAMMS Compliance Report only confirms the unit has ....made the initial logbook entry for assigned aircraft. ....TAMMS Compliance Reports will include aircraft serial ....numbers (in numerical order), date of entry on DA Form ....2408-13-1, unit address, local POC name and phone number. .... 4.2. TAMMS Compliance Report - Submit TAMMS Compliance Report via priority email to "safeadm@redstone.army.mil" NLT 27 Jan 05 IAW AR 95-1. If email is not available, the report may be faxed to: SOF Compliance Officer at DSN 897-2111 or (256) 313-2111. 5. TASK/INSPECTION COMPLIANCE REPORTING REQUIREMENTS - N/A. 6. SPECIAL PROVISIONS TO MESSAGE REQUIREMENTS (AIRCRAFT) - 6.1. Aircraft in AVIM or Depot level maintenance - Commanders, facility managers and contractors will not issue aircraft until they are in compliance with this message. 6.2. Aircraft on Red //X// status symbol will be maintained in flyable storage. Ground run-ups at normal operating rotor RPM are authorized. 7. TECHNICAL PROCEDURES/INSTRUCTIONS - 7.1. Conduct visual inspection of the transmission oil system to determine if quick disconnect couplings are installed on the hose assemblies (TM 55-1520-210-23-1, figure 6-13 item 13). 7.1.1 If one-piece fittings are installed, proceed to para 7.3. 7.1.2 If quick disconnect fittings are installed, proceed to para 7.2. 7.2. QUICK DISCONNECT REPLACEMENT PROCEDURES - Remove both transmission quick disconnect coupling halves PN 375200-12 and PN 375504-12 and replace them with PN 212-040-272-1, NSN 1615-01- 305-6417, threaded one-piece fittings and NAS617-12, NSN 5331-00- 531-2071, packing, 2 per aircraft, IAW the procedures listed in para 7.2.1 - 7.2.15 below: 7.2.1. Gain access to quick disconnect couplings in accordance with TM 55-1520-210-23. 7.2.2. Refer to TM 55-1520-210-23P-1, figure 154 and figure 175, for essential illustrated guidance. .... ...................CAUTION.................. ....When removing coupling and installing fittings, use two ....wrenches to prevent distortion of the tube assembly. .... 7.2.3. Refer to figure 154, disconnect coupling half (7) located at the external oil filter and hose assembly (42). Drain oil from hose (42) by pressing in the self closing poppet valve located in coupling half (7). 7.2.4. Disconnect hose assembly (42) from coupling half (7) and discard the coupling half. 7.2.5. Refer to figure 175. Remove coupling (1) from elbow (4), discard coupling, packing (2), but retain nuts (3). 7.2.6. Install fitting PN 212-040-272-1, new packing, PN NAS617- 12 in the transmission oil filter elbow (4) and tighten to standard torque. 7.2.7. Connect hose assembly (42), figure 154 to PN 212-040-272-1 fitting and tighten to standard torque. 7.2.8. Disconnect coupling half (7), figure 154, from the quick disconnect half (25), in figure 175. Drain oil from hose (6) figure 154 by pressing in the self closing poppet valve located in coupling half. 7.2.9. Figure 154, disconnect hose assembly (6) from coupling half (7) and discard the coupling half. 7.2.10. Figure 175, remove line (32) from adapter (26). 7.2.11. Figure 175, remove adapter (26) from quick disconnect (25), retain adapter for reinstallation. 7.2.12. Figure 175, remove quick disconnect half (25), discard coupling, packing (27), but retain nuts (28) that secure assembly to pylon bracket. 7.2.13. Install replacement fitting PN 212-040-272-1 through pylon bracket. Install packing NAS617-12. Install adapter (26) onto fitting and tighten to standard torque, securing fitting to bracket. 7.2.14. Figure 154, connect hose (6) to upper end of fitting PN 212-040-272-1 and tighten to standard torque. 7.2.15. Perform MOC. 7.3. Clear the initial entry from para 4.1. and note compliance on DA Form 2408-15. 8. PROCEDURES/INSTRUCTIONS FOR ASSEMBLIES/COMPONENTS/PARTS IN WORK OR IN STOCK (AT ALL LEVELS INCLUDING WAR RESERVES) - N/A. 9. SPECIAL TOOLS AND FIXTURES REQUIRED - N/A. 10. SUPPLY/PARTS (REQUISITION/DISPOSITION) - 10.1. Parts Required - ..Nomenclature PN/NSN Qty Cost ea. Total $ ..Fittings, Threaded 212-040-272-1 2 $525.59 $1051.18 ....One-Piece 1615-01-305-6417 ..Ring Sealing NAS617-12 2 $0.12 $0.24 ....(packing) 5331-00-531-2071 ...............................Total cost per aircraft = $1051.42 10.2. Requisitioning instructions - Requisition replacement parts using normal supply procedures. All requisitions shall use Project Code (CC 57-59) "X34" (X-ray-three-four). .... ...................NOTE................... ....Project Code "X34" is required to track and establish ....a data base of stock fund expenditures incurred by ....the field as a result of message actions. .... 10.3. Disposition of discrepant parts/components - Demilitarize/ mutilate IAW TM 1-1500-328-23. 10.4. Disposition of hazardous material - IAW Environmental Protection Agency directives as implemented by your servicing environmental coordinator (AR 200-1). 11. MAINTENANCE APPLICATION - 11.1. Category of maintenance - AVUM. 11.2. Estimated time required - 11.2.1. Time to complete inspection - Total of 0.5. man-hours using 1 person with 0 hours Not Mission Capable Maintenance (NMCM) per end item. .... ...................NOTE................... ....The time stated below does not include time for ....Maintenance Operational Checks or Maintenance Test ....Flights, if required. .... 11.2.2. Time for repair/replacement - Total of 4 man-hours using 1 person with 4 hours Not Mission Capable Maintenance (NMCM) per end item. 12. PUBLICATION REQUIREMENTS - 12.1. References - 12.1.1. AR 95-1. 12.1.2. AR 200-1. 12.1.3. DA Pam 738-751. 12.1.4. TM 55-1520-210-23-1. 12.1.5. TM 55-1520-210-23P-1. 12.1.6. TM 55-1520-210-PMD. 12.2. Publication changes - TM 55-1520-210-PMD, TM 55-1520-210- 23-1 and TM 55-1520-210-23P-1 shall be changed to reflect this message. A copy of this message will be used as authority to implement the change until the official change is received. 13. POINTS OF CONTACT - 13.1. Technical POCs are - 13.1.1. Primary - Darrell Hutson, AMSRD-AMR-AE-BG, DSN 897 2350 x9718 or (256) 705-9718. Fax is 256) 705-9918. Email is "Darrell.Hutson@rdec.redstone.army.mil". 13.1.2. Alternate - Roger Redick (WESTAR), AMSRD-AMR-AE-BG, DSN 897-2350 x9720 or (256) 705-9720. Fax is (256) 705-9918. Email is "Roger.Redick@rdec.redstone.army.mil". 13.2. Logistical POC is Mr. Howard Lee Reeves, SFAE-AV-AS-ASH-L, DSN 645-9701 or (256) 955-9701. Fax is 645-7125 or (256) 955- 7125. Email is "howard.reeves@peoavn.redstone.army.mil". 13.3. Wholesale Materiel POC (spares) is Mr. Edwayne Robinson, DSCR-QAEW, DSN 695-6774 or (804) 279-6774. Fax is DSN 695-5695. Email is "edwayne.a.robinson@dla.mil". 13.4. Forms and Records POC is Ms. Ann Waldeck, AMSAM-MMC-MA-NM, DSN 746-5564 or (256) 876-5564. Fax is DSN 746-4904 or (256) 876-4904. Email is "ann.waldeck@redstone.army.mil". 13.5. Safety POCs are - 13.5.1. Primary - Mr. Frank Rosebery (SAIC), AMSAM-SF-A, DSN 788-8631 or (256) 842-8631. Fax is DSN 897-2111 or (256) 313- 2111. Email is "frank.rosebery@redstone.army.mil". 13.5.2. Alternate - Mr. Signey Hernandez, AMSAM-SF-A, DSN 897- 2098 or (256) 313-2098. Fax is DSN 897-2111 or (256) 313-2111. Email is "signey.hernandez@redstone.army.mil". 13.6. Foreign Military Sales POC is Mr. Ronnie W. Sammons, AMSAM-SA-AS-UT, DSN 897-0875 or (256) 313-0875. Fax is DSN 897- 0411 or (256) 313-0411.