Service difficulty report · Case · Bell 212

Difficulty date
February 10, 2003
Submitted
March 25, 2003
Operation
Air carrier
Make and model
Bell 212
Engine
Pwa PT6T3
Part
Case
Condition
Punctured
Location
Compressor
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

(CAN) PIN SIZE HOLE LOCATED ON NR 2 PT6T-3 POWER SECTION GAS GENERATOR CASE AT APPROXIMATELY 7 O'CLOCK POSITION 3 3/4 INCHES AFT OF FIRST CIRCUMFIRENTIAL SEAM WELD (BY P3 AIR BOSS SUPPLYING AIR TO TORQUEMETER CLUTCH SEAL) WHILE PERFORMING VISUAL INSPECTION OF GAS GENENERTOR CASE. SILIGHT AIR LOSS FROM HOLE BUT NOT AFFECTING POWER ASSURANCE FIGURES (APPROXIMATELY +1.7 TO 1.9 PERCENT N1). POWER SECTION CHANGED.

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