Service difficulty report · Acoustic Liner · Boeing 73786J

Difficulty date
July 18, 2019
Submitted
October 9, 2019
Operation
Air carrier
Aircraft
N377AR
Make and model
Boeing 73786J
Aircraft serial
37753
Aircraft time
30,488 hours, 13,937 cycles
Part
Acoustic Liner
Condition
Damaged
Location
Lt Nacelle
Stage of operation
IN
How discovered
O
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 OVERNIGHT CHECK, IT WAS DETECTED THE LEFT ENGINE ACOUSTIC PANEL DAMAGED. MAINTENANCE PERSONNEL PERFORMED INSPECTION ON THE LEFT ENGINE ACOUSTIC PANEL, DETECTING A CRACK OF 0.500” LENGTH LOCATED AT 01:00 HOUR POSITION AND AT 13.00” FROM REAR EDGE ON INNER BARREL ACOUSTIC PANEL OUT OF LIMITS IAW SRM 54-10-01-1A-1, PARAGRAPH 4C(1)(B) AND THE TAP TEST AND DETAIL VISUAL INSPECTIONS WERE PERFORMED IAW B737 NDTM PART 1 51-05-01, THE DAMAGED AREA WAS DELIMITED AND THE LEFT ENGINE INNER BARREL ACOUSTIC PANEL WAS REPAIRED IAW SRM 54-10-01-2R, ALL CORRECT.

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