Service difficulty report · Adjuster · Lear 25D

Difficulty date
August 2, 2007
Submitted
September 26, 2007
Operation
General aviation
Make and model
Lear 25D
Part
Adjuster
Part number
3321209
Condition
Damaged
Location
Brake Valve
Component
Brake Valve · Lear
Component part number
6081041804
Stage of operation
NR
How discovered
9
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

UPON VISUAL INSPECTION OF THE POWER BRAKE VALVE PN 60810741-804, SN 9711105, IT WAS FOUND THAT THE ADJUSTMENT SCREW HAD BEEN GROUND DOWN AND MODIFIED. AS WE BEGAN TO LOOK THROUGH SB 23/24/25-32-12 AND FOUND THAT THIS UNIT PN WAS NOT IN THIS SB. WE THEN FOUND THAT THIS UNIT WAS FOR A LEAR 60. WE THEN LOOKED INTO THE MFG PARTS BREAKDOWN AND FOUND THAT THE LEVER AS WELL AS THE MODIFIED ADJUSTMENT SCREW, THE STOP SCREW AND PIN DID NOT BELONG ON THIS PN OF POWER BRAKE VALVE. THISE PARTS ARE FOR A PN 2380002 OR PN 2381443 OR PN 3321200-3 POWER BRAKE VALVE. WE CONTACTED OUR CUSTOMER AND FOUND THAT THIS UNIT WAS REMOVED FROM LEAR 25D.

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