Service difficulty report · Warning Message · Boeing 737990ER
FAA SDR system
- Difficulty date
- February 10, 2020
- Submitted
- February 13, 2020
- Operation
- Air carrier
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43292
- Aircraft time
- 25,026 hours, 8,032 cycles
- Part
- Warning Message
- Condition
- False Activation
- Location
- Cockpit Temp
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- N
- 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 ILLUMINATES ON RECAL LT EXTINGUISHES W/MASTER CAUTION RESET. GROUNDED - YES. CLEANED CABIN TEMP SENSOR ASSY FILTER REF B737-900 AMM 21-26-06. ACCOMPLISHED PACK/ZONE TEMP CONTROLLER BITE REF AMM 21-61-00 OPS CHECK NORMAL. ACCOMPLISHED CABIN TEMP CONTROL AND INDICATION OPS TEST, OPS CHECK NORMAL. THIS CLEARS MEL 21-21G.