What was found
APU INOP. SUPPLEMENTAL DATA UPDATE REPLACED APU. FOUND STARTER AND COOLING FAN IDLER DRIVE GEAR BROKEN IN GEARBOX. GEARBOX HOUSING HAS DAMAGE AND WILL PROBABLY BE SCRAPPED.
- Difficulty date
- March 21, 2001
- Submitted
- April 27, 2001
- Operation
- Air carrier
- Aircraft
- N551UA
- Make and model
- Boeing 757222
- Aircraft serial
- 25399
- Aircraft time
- 34,662 hours, 10,295 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 4910 · APU Cowling/Containment
- Part
- Spur Gear
- Part number
- 38601822
- Condition
- Failed
- Location
- Cooling Fan
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.