Service difficulty report · Buckle

Difficulty date
February 26, 2020
Submitted
February 26, 2020
Operation
General aviation
Aircraft
N5428
Part
Buckle
Part number
501153433
Condition
Abnormal
Location
Seat Belt
Component
Seat Belt · Amsafe
Component part number
500869407500870403
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

A CUSTOMER EXPLAINED THAT HE COULD NOT RELEASE HIS SEAT BELT BUCKLES WHEN THEY WERE PUT UNDER A LOAD. THE FOUR SEAT BELTS IN QUESTION WERE RETURNED AND WHEN TESTED UNDER A LOAD SIMULATING A PERSON'S WEIGHT PRESSING AGAINST THE RESTRAINT WE ALSO FOUND THAT THE BUCKLES WOULD NOT RELEASE. WE PERFORMED THE SAME TEST WITH TWO DIFFERENT BUCKLES USING THE SAME MALE CONNECTOR PORTION OF THE RESTRAINT THAT THE CUSTOMER RETURNED AND FOUND THAT BOTH OF THESE BUCKLES WOULD RELEASE UNDER A LOAD. WE ALSO TRIED USING A DIFFERENT MALE CONNECTOR TO SEE IF THAT CHANGED ANYTHING, BUT THE BUCKLE STILL WOULD NOT RELEASE. THERE WAS NO DISTINGUISHABLE DIFFERENCE IN THE BUCKLES IN QUESTION AS COMPARED TO THE BUCKLES THAT WOULD RELEASE PROPERLY.