- Difficulty date
- January 22, 2020
- Submitted
- February 4, 2020
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 36578
- Aircraft time
- 38,191 hours, 11,226 cycles
- Part
- Actuator
- Part number
- 5416744
- Part serial
- 8681
- Condition
- Faulted
- Location
- Ram Air Exhaust
- Part time
- 59,864 hours, 26,298 cycles
- Stage of operation
- NR
- How discovered
- O
- 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
LH PACK LIGHT ILLUMINATED & RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED PACK /ZONE TEMP CONTROLLER BITE REF B737-800 AMM 21-61-00-700-806-002. FOUND LH RAM AIR ACT FAULT. REMOVED AND REPLACED LH RAM AIR INLET ACTUATOR REF B737-800 AMM 21-51-21/401 OPC PASSED. ETOPS GROUND VERIFICATION SUCCESSFUL.