What was found
NR 1 ENGINE HIGH STAGE REGULATOR FAILED REVERSE FLOW DIAPHRAM TEST DURING ENGINE BLEED AIR HEALTH CHECK TASK CARD. ACFT GROUNDED. REPLACED NR 1 ENGINE HIGH STAGE REGULATOR. LEAK/OPS CHECK OK, REF MM 36-11-07.
- Difficulty date
- December 19, 2014
- Submitted
- December 22, 2014
- Operation
- Air carrier
- Aircraft
- N565AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35181
- Aircraft time
- 30,845 hours, 9,433 cycles
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Regulator
- Part number
- 1074847
- Part serial
- 2056C
- Condition
- Failed
- Location
- Nr 1 Engine
- Part time
- 64,385 hours, 34,403 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.