SDR 99ZZZX1212

Service difficulty report · Alternator · Beech V35A

Difficulty date: March 10, 1999
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N2722A
Make and model: Beech V35A
Aircraft serial: D9050
Engine: Cont IO520B
System (JASC): 2434 · DC Generator-Alternator
Part: Alternator
Part number: ALX9424
Condition: Failed
Location: Alternator
Component: Electrosys
Stage of operation: NR
Nature of condition: O
Precautionary procedure: O

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

What was found

INSTALLED ALTERNATOR AND UNIT FAILED TO OPERATE. AFTER INSPECTION, CAUSE OF FAILURE WAS THE BRUSHES. DURING ASSEMBLY, SOMEONE HAD PUT SOME TYPE OF EPOXY ON BRUSHES TO HOLD THEM IN THE BRUSH HOLDER. THIS, IN EFFECT, KEPT THE BRUSHES FROM MAKING CONTACT.

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