What was found
DUCT PRESSURE SPLIT AT FL 350. RT 45 PSI, LT 21 PSI CRUISE POWER. ACFT GROUNDED. REPLACED NR 1 ENGINE PRSOV IAW AMM 36-11-04. ACCOMPLISHED PART POWER LEAK CHECK IAW AMM 71-00-00-700-823-FOO. NO DEFECTS NOTED.
- Difficulty date
- October 27, 2014
- Submitted
- October 27, 2014
- Operation
- Air carrier
- Aircraft
- N464AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 40714
- Aircraft time
- 1,709 hours, 536 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Shutoff Valve
- Part number
- 32145526
- Part serial
- 15785
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 1,752 hours, 547 cycles
- Stage of operation
- CR
- How discovered
- 9
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.