Service difficulty report · Structure · Boeing 7472D7B

Difficulty date
July 31, 2011
Submitted
August 2, 2011
Operation
Air carrier
Aircraft
N523MC
Make and model
Boeing 7472D7B
Aircraft serial
21782
Aircraft time
104,499 hours, 21,329 cycles
Part
Structure
Condition
Cracked
Location
Thrust Reverser
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

DURING WALK AROUND CHECK, MX FOUND 2EA CRACKS AT 7 O'CLOCK POSITION ON THE AFT CENTER BODY ON THE NR 2 ENGINE. 1EA CRACK MEASURING 1.25 INCHES AND 1EA CRACK MEASURING APPROX 1 INCH REF FIGURE 1. DISPOSITION WAS MADE TO STOP DRILL THE CRACKS USING STANDARD PRACTICES AND ELEMENTARY OPERATIONS; RE-INSPECT EVERY FLIGHT CYCLE; AND REPLACE CENTERBODY WITHIN 10 FLIGHT CYCLES. THIS EO IS APPROVED BY 8110-3 DATED JULY 31, 2011.

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