Service difficulty report · Master Caution · Boeing 737890
FAA SDR system
- Difficulty date
- April 13, 2022
- Submitted
- April 15, 2022
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35177
- Aircraft time
- 56,935 hours, 16,610 cycles
- Part
- Master Caution
- Part number
- 3989085
- Part serial
- 20728
- Condition
- Failed
- Location
- Right Ecs Bay
- Part time
- 27,052 hours, 8,148 cycles
- Stage of operation
- NR
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL PACK LIGHT #2 REMAINED ILLUMINATED-RESET WITH MASTER CAUTION RESET. GROUNDED - YES. CONFIRMED FAULT, #2 PACK/ZONE TEMP CONTROLLER SHOWS HARD FAIL TCV 2 (V141). REMOVED & REPLACED TCV 2 REF B737-800 AMM 21-51-10, LK CK & GROUND FUNCTIONAL CK NML REF AMM 21-61-00-700-806-002.