Service difficulty report · Gusset · Boeing 73776Q

Difficulty date
March 20, 2021
Submitted
April 22, 2021
Operation
Air carrier
Aircraft
N551WN
Make and model
Boeing 73776Q
Aircraft serial
30280
Aircraft time
60,799 hours, 37,574 cycles
Part
Gusset
Condition
Corroded
Location
Aft Cargo
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*** ON GUSSET AT AREA AFT OF ACB BS990 BS990 RBL22 WL188. THIS GUSSET DOES NOT HAVE ALLOWABLE DAMAGE LIMITS PER SRM THEREFORE WILL BE REPAIRED BY REPLACEMENT IAW SRM 511002 STEP 9C REMOVED AND REPLACED GUSSET AT AREA AFT OF ACB BS990 RBL 22 WL188 PER REF SRM 5140020G AND DWG NBR 147A7427; 147A0002 (PART WAS HEAT TREATED TO T62 CONDITION PER BAC5602 ON ATS W.O. 538465)

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