Service difficulty report · Mast · Hughes 500N

Difficulty date
October 13, 2000
Submitted
November 2, 2000
Operation
General aviation
Aircraft
N527FB
Make and model
Hughes 500N
Aircraft serial
LN007
Part
Mast
Condition
Damaged
Location
Main Rotor
Part time
7,576 hours
Component
M/R Mast
Component part number
369D22014
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

FOUND PAINT SEALANT INSIDE MAST TUBE BLISTERED AND FALLING INTO M/R TRANSMISSION GEARBOX. APPEARED THAT M/R TRANSMISSION OIL MOBILE SHC 626 IS NOT COMPATIBLE WITH SEALANT PAINT ON INSIDE OF M/R MAST.