SDR 97ZZZX2463

Service difficulty report · Blade Assy · Doug MD900

Difficulty date: March 7, 1997
Submitted: March 26, 2000
Operation: Air carrier
Aircraft: N901CF
Make and model: Doug MD900
Aircraft serial: 90000012
System (JASC): 6720 · Tail Rotor Control System
Part: Blade Assy
Part number: 900R2442012103
Condition: Defective
Location: Notar Fan
Part time: 1,269 hours
Stage of operation: IN
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

FAN ASSEMBLY, NOTAR (R). WHILE PERFORMING FAN HUB WEIGHT CHANGE, FOUND SEVERAL FAN BLADES WITH SIDEWALL DEFECT OR PROTRUSION. ALSO, FOUND THE FAN DIVERTER PLATE BELLCRANK HAD ELONGATED HOLES. INNER BELLCRANK WAS LOOSE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.

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