What was found
WHILE ACCOMPLISHING T/C NG-36WC-00001 FOUND PRE-COOLER VALVE TO BE OUT OF LIMITS ON #1 ENGINE. GROUNDED - YES. REMOVED AND REPLACED PRE-COOLER VALVE REF B737-800 AMM 36-12-02-400-801/000-801. OPS CK GOOD.
- Difficulty date
- June 29, 2021
- Submitted
- July 1, 2021
- Operation
- Air carrier
- Aircraft
- N506AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35690
- Aircraft time
- 47,564 hours, 14,394 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Valve
- Part number
- 632921461
- Part serial
- 2527
- Condition
- Out Of Limits
- Location
- Precooler
- Part time
- 10,960 hours, 3,182 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.