What was found
WHILE ACCOMPLISHING EO NG-21EO-15449-1 FOUND THAT R/H TRIM AIR MODULATING VALVE NEEDS TO BE REPLACED. ACFT GROUNDED. REMOVED AND REPLACED RT TRIM AIR MODULATING VALVE IAW AMM 21-61-21. OPS CHECKED GOOD.
- Difficulty date
- May 6, 2017
- Submitted
- May 8, 2017
- Operation
- Air carrier
- Aircraft
- N459AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36352
- Aircraft time
- 12,618 hours, 4,184 cycles
- System (JASC)
- 2160 · Cabin Temperature Control System
- Part
- Valve
- Part number
- 3989084
- Part serial
- 2402
- Condition
- Failed
- Location
- Rt A/C Pack
- Part time
- 63,015 hours, 29,996 cycles
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.