- Difficulty date
- December 5, 2014
- Submitted
- December 9, 2014
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35688
- Aircraft time
- 25,029 hours, 7,776 cycles
- Part
- Shaft
- Condition
- Sheared
- Location
- Nr 1 Starter
- Part time
- 33,884 hours, 10,458 cycles
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FAILED TO START, START SWITCH TO GROUND, START LIGHT ILLUMINATED, NO N2 ROTATION. ACFT GROUNDED. CONFIRMED ENGINE 1 STARTER SHAFT SHEARED. REMOVED STARTER IAW AMM 80-11-01-01A. INSTALLED STARTER 80-11-01-400-801. START VALVE ENGINE OPS AND LEAK CHECKS GOOD. PERFORMED OPS AND LEAK CHECK OF NR 1 ENGINE STARTER IAW MX AMM 71-00-00 AND 80-11-01, OP'S AND LEAK CHECK GOOD/NORMAL.