What was found
APU TORQUE BOX AREA, CORROSION AT APU AIR PLENUM TO ACFT MATING SURFACE (INSIDE INNER TORQUE BOX). R & R RT APU TORQUE BOX FORWARD STIFFENER IAW SRM 51-40-02.
- Difficulty date
- September 16, 2012
- Submitted
- October 4, 2012
- Operation
- Air carrier
- Aircraft
- N786AS
- Make and model
- Boeing 7374S3
- Aircraft serial
- 24795
- Aircraft time
- 61,580 hours, 33,748 cycles
- Engine
- Cfmint CFM563C1
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Stiffener
- Part number
- 6546579531
- Condition
- Corroded
- Location
- Bs 1112
- 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.