SDR ASAA2019020228085

Service difficulty report · Intercostal · Boeing 737990

Difficulty date: February 2, 2019
Submitted: February 9, 2019
Operation: Air carrier
Aircraft: N317AS
Make and model: Boeing 737990
Aircraft serial: 30856
Aircraft time: 55,713 hours, 22,076 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Intercostal
Part number: 141A541012
Condition: Cracked
Location: Fuselage
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

MAIN CABIN FLOOR STRUCTURE, FORWARD WET AREA (SEC 41) INTERCOSTAL P/N:141A5410-12 LOCATED AT STA 312-STA 328, RBL 31.60, WL 208.1 CRACKED AT FASTENER HOLE LOCATION. GROUNDED - YES. REMOVED INTERCOSTAL IAW SRM 51-40-02-0G-01, LOCATED AND DRILLED NEW INTERCOSTAL IAW SRM 51-40-05-0G-0, INSTALLED NEW INTERCOSTAL IAW DWG 141A5400 REV- SHT 39 AND SRM 51-40-02-0G-0.