What was found
NR 1 ENGINE NO START 3 ATTEMPTS, NORMAL ROTATION AND FF, NO EGT RISE. OPERATION NR 1 ENGINE NORMAL IN IGN SYSTEM 2. REPLACED NR 1 IGNITER AND IGNITER BOX. OPS CHECKED GOOD. TESTED PER MM.
- Difficulty date
- July 25, 2011
- Submitted
- August 2, 2011
- Operation
- Air carrier
- Aircraft
- N128UA
- Make and model
- Boeing 747422
- Aircraft serial
- 30023
- Aircraft time
- 45,569 hours, 5,430 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Igniter
- Part number
- 106216301
- Part serial
- 429
- Condition
- Faulty
- Location
- Nr 1 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.