SDR UIEA2020071001519

Service difficulty report · Combust Chamber · Boeing 7673Y0

Difficulty date: July 7, 2020
Submitted: July 13, 2020
Operation: Air carrier
Aircraft: N1619A
Make and model: Boeing 7673Y0
Aircraft serial: 26208
Aircraft time: 74,590 hours, 13,445 cycles
Engine: Pwa PW4060
System (JASC): 7240 · Turbine Engine Combustion Section
Part: Combust Chamber
Condition: Cracked
Location: Nr 1 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 BOROSCOPE INSPECTION, FOUND THE NR 1 ENGINE WITH A CONTINUOUS AXIAL CRACK ON THE COMBUSTION CHAMBER OUTER LINER, AT THE 3 O`CLOCK POSITION. THE COMBUSTER 13 WAS PERMITTED TO CONTINUE ON A REDUCED TIME INSPECTION INTERVALS OF 125 CYCLES IAW AMM 72-00-00, AND W/C A-72-410-00-01.

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