SDR ASAA2020082183049

Service difficulty report · Skin · Boeing 737890

Difficulty date: August 18, 2020
Submitted: August 21, 2020
Operation: Air carrier
Aircraft: N535AS
Make and model: Boeing 737890
Aircraft serial: 35200
Aircraft time: 35,823 hours, 10,320 cycles
System (JASC): 5330 · Fuselage Main, Plate/Skin
Part: Skin
Part number: 148A3321
Condition: Corroded
Location: Bs 916
Stage of operation: IN
How discovered: 9
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

FUSELAGE SKIN HAS CORROSION BS 916, STR 24L. GROUNDED - YES. REMOVED CORROSION ORIGINAL SKIN THICKNESS 0.063, IAW B737-800 SRM 53-80-01-O1, REMAINING SKIN THICKNESS 0.061. REMOVED 0.002 BLENDED AREA WITHIN ALLOWABLE LIMITS, IAW B737-800 SRM 53-00-01-1A-1 PARA 4B(2)(B). ALODINED IAW B737-800 SRM 51-20-01. PRIMED IAW BOEING SOPM 20-44-04 PAINTED TOP COAT, IAW B737-800 AMM 51-21-99.