SDR ASAA2020021143142

Service difficulty report · Vane · Boeing 737890

Difficulty date: February 4, 2018
Submitted: February 12, 2020
Operation: Air carrier
Aircraft: N563AS
Make and model: Boeing 737890
Aircraft serial: 35180
Aircraft time: 42,082 hours, 12,640 cycles
Engine: Cfmint CFM567B273
Engine time: 40,745 hours, 11,839 cycles
System (JASC): 7250 · Turbine Section
Part: Vane
Condition: Cracked
Location: Nr 1 Nozzel
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

REPEAT BOROSCOPE INSPECTION ON #1 ENGINE WITH ONE LPT STAGE 1 NOZZLE VANE WITH FULL CRACK AND MISSING MATERIAL LESS THAN .039 SQ IN AT 3 O'CLOCK ALF PER B737-800 AMM 72-00-00-200-811-F00 FOUND RADIAL CRACKS FROM HOLE HAS PROGRESS, BUT REMAINS IN LIMITS. BURNED MATERIAL HAS PROGRESS FROM .0318"SQ TO .0393"SQ. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE REF W/O 1042103.