What was found
REPLACE #1 TBV DUE TO HISTORY OF FAULTS. GROUNDED - YES. REPLACED J6 HARNESS REF 73-21-06. REPLACED TBV IN REF TO B737-800 AMM 75-23-01 LEAK OPS CHECK GOOD.
- Difficulty date
- March 24, 2023
- Submitted
- March 27, 2023
- Operation
- Air carrier
- Aircraft
- N563AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35180
- Aircraft time
- 58,980 hours, 17,350 cycles
- System (JASC)
- 7520 · Engine Cooling System
- Part
- Valve
- Part number
- 32913901
- Part serial
- G5579
- Condition
- Faulty
- Location
- #1 Engine
- Part time
- 60,484 hours, 28,108 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.