SDR FDEA201502250595

Service difficulty report · Duct · Boeing 757222

Difficulty date: February 25, 2015
Submitted: March 6, 2015
Operation: Air carrier
Aircraft: N771FD
Make and model: Boeing 757222
Aircraft serial: 24799
Aircraft time: 763 hours, 28,339 cycles
System (JASC): 4920 · APU Core Engine
Part: Duct
Condition: Corroded
Location: Apu Intake
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.

What was found

APU AIR INTAKE DUCT FWD CUT OUT FLANGE IS EXFOLIATED. REMOVED CORROSION FROM FWD CUT OUT FLANGE AT APU AIR INTAKE AS PER SRM 51-10-02. BLEND STRAP ORIG. MAT. .250", MAT. LOSS .250", REMAINING .000", FOUND OUT OF LIMITS AS PER SRM 53-00-01, FIG. 101, DETAIL II. REMOVED AND REPLACED FWD STRAP AS PER SRM 51-40- 02 AND DWG 148N3105. MAJOR REPAIR