- Difficulty date
- December 28, 2021
- Submitted
- December 30, 2021
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40715
- Aircraft time
- 24,399 hours, 7,717 cycles
- Part
- Unknown
- Part number
- UNKNOWN
- Condition
- Unknown
- Location
- Unknown
- 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
CONT CAB ZONE TEMP LIGHT ILLUMINATES ON RECALL. GROUNDED - YES. REF B737-900 FIM 21-62 TASK 848, #2 PZTC PREV FLT LOGGED FLT DECK TRIM VALVE FAULT, FAULT RESETTABLE. VERIFIED BOTH PACKS OPS CHECKED NORMAL IN ALL TEMPT RANGE SETTING W/O FAULTS. PZTC'S BITE VERIFY TESTED GOOD.