Service difficulty report · Skin · Boeing 757222

Difficulty date
May 16, 2011
Submitted
June 8, 2011
Operation
Air carrier
Aircraft
N547UA
Make and model
Boeing 757222
Aircraft serial
25368
Aircraft time
72,806 hours, 21,232 cycles
Engine
Pwa PW2037
Part
Skin
Condition
Delaminated
Location
Fan Cowling
Component
Fan Cowl
Component part number
314N311054SP
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

NR 1 ENG INBD-RT FAN COWL HAS OUTER SKIN AREA OF FROST 9" BY 8" DUE TO FROZEN WATER IN CORE AND INNER SKIN DELAMINATION 14" BY 13" 14 INCH ALONG FORWARD TAPER OF HONEY COMB CORE AND AFT UP TO 13 INCHES FROM L/E OF CORE TAPER AREA OUT OF LIMITS PER SRM. NOTE F1 INCH MAX AND BEYOND INTERIM REPAIR LIMIT AND WET LAYUP LIMIT. NEEDS 350 DEGREE REPAIR. DELAM IS 3 INCH AFT OF LEADING EDGE ON INNER SKIN AT EDGE OF CORE TAPER AND IS FROM 12 INCH UP FROM LOWER EDGE TO 26 INCHES UP FROM LOWER EDGE. RPLD NR 1 ENG RT INBD FAN COWL, NO SERIAL NUMBER. NO DEFECTS NOTED.