SDR ERAA076664

Service difficulty report · Blade · Bolkms BO105A

Difficulty date
October 9, 2001
Submitted
November 12, 2001
Operation
General aviation
Aircraft
N135EH
Make and model
Bolkms BO105A
Aircraft serial
S675
Aircraft time
12,271 hours
Part
Blade
Part number
10515170
Part serial
3434
Condition
Debonded
Location
Main Rotor
Part time
11,319 hours
Stage of operation
IN
How discovered
V
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

BLADE IS DEBONDING ON LEADING EDGE. POTTING NEEDS CHANGING NOSE AND NECK SHELLS CRACKED @ NECK DOWN AREA, SKIN CRACK AND VOIDED @ NECK AREA, TEFLON MISSING FROM MAIN BUSHING, DRAG BUSHING HAS FRAYED AND MISSING TEFLON, DAMPNER WRAP VOID LOWER SURFACE, ALL ABRASION STRIPS VOID @ SCARF JOINTS, HEAVY ERROSION ON OUTBOARD ABRASION STRIP, MINOR CORROSION ON THE TABS. DU DISKS MISSING, MINOR CORROSION ON PENDULUM ARM, SWEEP OUT 10.34MM ACTION TAKEN: REPLACED NR 1 OUTBOARD ABRASION STRIP, REPLACED PT REINSTALLED NR 2,3,4 ABRASION STRIPS, REPLACED DU DISKS REPLACE MAIN BUSHING, REPLACED DRAG BUSHING, REM'D AND TREAT CORROSION OR TRIM TABS, PERFORM SMALL SKIN REPAIR @ NECK, REPLACED NOSE AND NECK SHELLS, REPLACED DAM