SDR ASAA2021031234297

Service difficulty report · Guide Vane · Boeing 737890

Difficulty date: March 12, 2021
Submitted: March 30, 2021
Operation: Air carrier
Aircraft: N514AS
Make and model: Boeing 737890
Aircraft serial: 35193
Aircraft time: 45,016 hours, 13,374 cycles
Engine: Cfmint CFM567B27
Engine time: 45,016 hours, 13,374 cycles
System (JASC): 7250 · Turbine Section
Part: Guide Vane
Condition: Damaged
Location: Lt Engine
Part time: 45,016 hours, 13,374 cycles
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

REF DEFECT NO. 11988672 ENG #1 ESN 896796 BSI NGV AIRFOIL HAS MISSING MATERIAL. GROUNDED - YES. FOUND DAMAGE TO NGV AIRFOIL HAD PROPAGATED. THE HOLE/MISSING MATERIAL NOW MEASURES 0.0225 IN.SQ. REQUIRES ENGINE REMOVAL IN 25 CYCLES IAW B737-800 AMM 72-00-00-200-811-F00 FIGURE 635 SHEET 4.