SELF LOCKING FITTINGS
LULYLOK / ELS
LULYLOK
LULYLOK™ is a technology created by JPB système as part of its mission to provide innovative solutions to secure fluid and gas connections in the aviation industry...
Details
Easy Locking System
The classic full bodied ELS (Easy Locking System) can withstands extreme conditions while giving quick access to fittings...
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The field problems speak for themselves, find below examples of issues recorded by FAA :
BOEING
2016
“Oil dripping from nr 1 engine. Acft grounded. Leak checked nr 1 engine and found loose B-nut at 6 o'clock. Secured the B-nut and accomplished the leak check iaw amm 71-71-00. No leaks noted.”
BOEING
2017
“Aircraft was grounded. Emergency declared. Dfw-sna flight diverted to elp account passengers in rows 17 and 18 reported thumping noise coming from floor, landing uneventful. Inspected aircraft and flight continued to sna. Found a loose B-nut and missing clamp on the left hydraulic reservoir head pressure line. Tightened B-nut (aala20170501004) and installed clamp. No other defects noted. Operational check good.”
DOUGLAS
2016
“Left oil pressure low at 24,000. Followed by zero oil qty. Shutdown lt engine in flight. Found loose B-nut at 8 o`clock position, rt above starter. Oil line is disconnected. Replaced iaw amds w/c 7100-4682-lt.”
Extracted from FAA “Service Difficulty Reporting” database with keyword “LOOSE B-NUT” (http://av-info.faa.gov/sdrx/Query.aspx)