Service difficulty report · Blades · Boeing 777222

Difficulty date
April 12, 2010
Submitted
April 16, 2010
Operation
Air carrier
Aircraft
N776AM
Make and model
Boeing 777222
Aircraft serial
28692
Aircraft time
15,833 hours, 1,782 cycles
Engine
Ge GE9094B
Engine time
15,833 hours, 1,782 cycles
Part
Blades
Condition
Damaged
Location
Compressor
Component
Engine
Stage of operation
IN
How discovered
B
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 A BORESCOPE INSP OF THE HPC 1, 4 AND 9 STAGES BLADES OF THE RT ENGINE WAS DETECTED. 1 BLADE OF THE HPC 1ST STAGE WITH L/E TIP CURLED 90 DEGREES OUT OF LIMITS IAW 72-00-00, PARA 5H (L) (7), PAGE 625; WITH DIMENSIONS OF 3.5 INCHES LENGTH AND 1.25 INCHES WIDE, COVERING AN AREA OF 2.1875 SQUARE INCHES. THE FINAL REPAIR DETAILS WILL BE PROVIDED AS A SUPPLEMENT.