Service difficulty report · Support · Boeing 73771B

Difficulty date
November 9, 2021
Submitted
December 1, 2021
Operation
Air carrier
Aircraft
N7862A
Make and model
Boeing 73771B
Aircraft serial
33009
Aircraft time
48,858 hours, 32,792 cycles
Part
Support
Condition
Corroded
Location
Fuselage
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

CORROSION FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT BS 400 +18 RBL 25 WL 156 ; / [01] EVALUATED CORROSION; FOUND 0.015 REMOVED FROM ORIG 0.040 IN 1'X1' AREA FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 USING DIAL DEPTH GAUGE ATS 1225 S/N UNKNOWN; [02] VERIFIED OUT OF LIMITS; [03] FABRICATED NEW FCB RH FLOOR TO SIDEWALL SUPPORT; BS 395-420; LOCATED AND DRILLED IAW SRM 51-40-05-0G-0; DWG; 143A7500; MATERIAL; BAC1496-444#7075T62; LOT#1467644-1; APPLIED CHEMICAL CONVERTION COATING; IAW SRM; 51-20-01-0G-0; AND OK TO PRIME.; [04] VERIFIED FABRICATED NEW FCB RH FLOOR TO SIDEWALL SUPPORT; BS 395-420; LOCATED AND DRILLED IAW SRM 51-40-05-0G-0; DWG; 143A7500; MATERIAL; BAC1496-444#7075T62; LOT#1467644-1; APPLIED CHEMICA

More about the Boeing 737-71B