Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- March 20, 2018
- Submitted
- March 26, 2018
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41728
- Aircraft time
- 8,281 hours, 2,774 cycles
- Part
- Control Valve
- Part number
- 3989085
- Part serial
- 26099
- Condition
- Faulted
- Location
- Rt A/C Pack
- Part time
- 8,347 hours, 2,791 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK LIGHT ILLUMINATED ON RECALL. LIGHT GOES OUT ON MASTER CAUTION RESET. ACFT GROUNDED. CONFIRMED FAULT, NR 2 PFTC SHOWS TCV, #2 FAULT CODE MSG #21-51267. REMOVED AND REPLACED #2 TCV REF B737-900 AMM 21-51-10, PFTC BITE TESTS NML REF AMM 21-61-00-740-801-002. AIRCRAFT RELEASED FROM MEL 21-32B.