Service difficulty report · Control Valve · Boeing 737990ER
FAA SDR system
- Difficulty date
- January 22, 2022
- Submitted
- January 27, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36353
- Aircraft time
- 21,550 hours, 6,808 cycles
- Part
- Control Valve
- Part number
- 3989083
- Part serial
- 11574
- Condition
- Faulty
- Location
- Right Ecs Bay
- Part time
- 47,875 hours, 14,459 cycles
- Stage of operation
- NR
- How discovered
- V
- 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
AMBER PACK LIGHT ILLUMINATES FOR THE RIGHT PACK ON MASTER CAUTION RECALL. AMBER PACK LIGHT EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED & REPLACED RT PACK AFT TEMP CONTROL VALVE REF B737-900 AMM 21-61-21, BITE TEST GOOD.