Service difficulty report · Duct · Boeing 7673BG

Difficulty date
May 24, 2025
Submitted
May 29, 2025
Operation
Air carrier
Aircraft
N563NC
Make and model
Boeing 7673BG
Aircraft serial
30563
Aircraft time
86,384 hours, 22,226 cycles
Engine
Pwa PW4060
Engine time
90,337 hours, 13,012 cycles
Part
Duct
Condition
Cracked
Location
Nr 2 Engine
Stage of operation
CL
How discovered
O
Nature of condition
M, J
Precautionary procedure
A

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

What was found

ON CLIMBOUT AT 400FT AGL, ENG #2 EGT EXCEEDED LIMITS, TOPPED AT 650 DEGREES F AFTER 3 SECONDS. REDUCED THRUST, EGT STAYED WITHIN LIMITS. ON FURTHER CLIMB, #2 OIL TEMP APPROACHED LIMITS (158 DEGREES F). INSPECTED RH ENGINE AND FOUND INTERMEDIATE BLEED AIR DUCT CRACKED. REMOVED AND REPLACED DUCT IAW AMM 36-11-01 NO LEAKS NOTED.

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