Service difficulty report · Ring · Boeing 777222

Difficulty date
July 19, 2010
Submitted
July 28, 2010
Operation
Air carrier
Aircraft
N772UA
Make and model
Boeing 777222
Aircraft serial
26930
Aircraft time
59,188 hours, 10,954 cycles
Engine
Pwa PW4077
Part
Ring
Condition
Damaged
Location
Nr 2 Engine
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

RN 2 ENG. OUTER KEVLAR CONTAINMANT RING DAMAGED AT APPOX. 1 O'CLOCK POS. (UNDER RH FAN COWL). REPAIRED REF MM. ACCOMPLISHED TEMPORARY REPAIR OF OUTER ENVIRONMENTAL LAYER. TEMPORARY 50 HOUR FLYBACK REPAIR. DAMAGE WAS A CRACK AND PARTIAL TEAR APPRX 10 TO 12 INCHES THROUGH OUTER LAYER ONLY. DUE TO LENGTH OF CRACK, NEED CLOTH-REINFORCED EPOXY REPAIR PER EVA-73977. COVER WITH FIBERGLASS CLOTH PCN 833-0218 THAT EXTENDS AT LEAST 1 INCH BEYOND DEFECT ALL AROUND. APPLY 2 COATS OF EPOXY RESIN 840-0513 TO CLOTH WITH CURE TIME IN BETWEEN. RECOMMEND ORDER ENOUGH 840-0513 TO COVER APPROX 14X3 INCH CLOTH 2X. REPAIRED DAMAGED CONTAINMENT RING. REF EVA, UA-EVA-73977.