Service difficulty report · Drag Fitting · Boeing 7572Q8

Difficulty date
December 1, 2020
Submitted
December 3, 2020
Operation
Air carrier
Aircraft
N703TW
Make and model
Boeing 7572Q8
Aircraft serial
27620
Aircraft time
86,954 hours, 22,779 cycles
Part
Drag Fitting
Condition
Corroded
Location
Lt Nacelle
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

DURING INSPECTION MAINTENANCE FOUND LEVEL 2 CORROSION ON OPEN HOLES AT LT ENGINE DRAG FTG CLAMP-UP & DIAG BRACE AS FOLLOW: HOLE NR 1 CORROSION ON SKIN AND FITTING BETWEEN 8 AND 9 O'CLOCK POSITION; HOLE NR 2 CORROSION ON SKIN AND FITTING AT 12 O'CLOCK POSITION; HOLE NR 3 CORROSION AND TOOL MARKS ON SKIN AND FITTING AT 6 AND 8 O'CLOCK POSITION; HOLE NR 4 CORROSION ON SKIN AND FITTING AT 6 O`CLOCK POSITION; HOLE NR 5 CORROSION AND TOOL MARKS ON SKIN AND FITTING BETWEEN 6 AND 7 O'CLOCK POSITION; HOLE NR 6 CORROSION ON SKIN AND FITTING AT 6 O'CLOCK POSITION; HOLE NR 7 CORROSION ON SKIN AND FITTING AT 10 O'CLOCK POSITION; HOLE NR 8 CORROSION AND TOOL MARKS BETWEEN 10 AND 12 O'CLOCK POSITION; HOLE NR 9 CORROSION ON SKIN AND FITTING AT 9 O'CLOCK POSITION; HOLE NR 10 CORROSION AND TOOL MARKS ON SKIN AT 6 O'CLOCK POSITION AND FITTING AT 4 O'CLOCK POSITION. REPAIRED PER ERA 588829-14.

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