What was found
ENGINEERING REQUESTS NR 2 ENGINE HMU REPLACEMENT FOR CONTINUING HPT ACCV FAULTS. ACFT GROUNDED. REPLACED NR 2 ENGINE HMU IAW TASK CARDS N8473000, N8473001. NO RECENT OR FAULT HISTORY NOTED PRIOR TO HMU INSTALLATION TESTS.
- Difficulty date
- August 7, 2015
- Submitted
- August 12, 2015
- Operation
- Air carrier
- Aircraft
- N569AS
- Make and model
- Boeing 737490
- Aircraft serial
- 35184
- Aircraft time
- 32,142 hours, 10,000 cycles
- Engine
- Cfmint CFM567B27
- System (JASC)
- 7320 · Fuel Controlling System
- Part
- Hmu
- Part number
- 1853M56P12
- Part serial
- BECW5052
- Condition
- Faulted
- Location
- Nr 2 Engine
- Part time
- 33,383 hours, 10,286 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.