SDR ASAA2017103022386

Service difficulty report · Stiffener · Boeing 737790

Difficulty date: October 30, 2017
Submitted: November 2, 2017
Operation: Air carrier
Aircraft: N614AS
Make and model: Boeing 737790
Aircraft serial: 30343
Aircraft time: 58,856 hours, 26,992 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Stiffener
Part number: 148A248824
Condition: Corroded
Location: Bs 1088
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

BS 1088 BULKHEAD VERTICAL ANGLE, RBL 12.5 AT THE APU AIR INLET CORRODED. ACFT GROUNDED. REMOVED THE CORROSION ON THE VERTICAL STIFFENER, AND FOUND OUT OF LIMITS. REMOVED, FABRICATED AND INSTALLED A NEW STIFFENER IAW SRM 51-40-02-0G-0, 51-30-01-0G-0, 53-80-08-1A.