SDR UIEA2019083005356

Service difficulty report · Floor Support · Boeing 747422

Difficulty date: August 28, 2019
Submitted: August 31, 2019
Operation: Air carrier
Aircraft: N480MC
Make and model: Boeing 747422
Aircraft serial: 28812
Aircraft time: 75,274 hours, 8,388 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Corroded
Location: Bs 980-983
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

M/D - STA 980 - 983, LBL 11, FLOOR SUPPORT FOUND CORRODED. STA 980 - 983, LBL 11, FLOOR SUPPORT CORROSION REMOVED AND RE-PROTECTED AS PER SRM 51-10-02 AND SRM 51-20-01. BLEND OUT DEPTH 0.005, ORG 0.100", WIDTH 0.8", LENGTH 3" WITHIN SRM 53-00-51 ALLOWABLE DAMAGE 1 FIG 101 LIMIT.