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GHI informational letter UH1-98-11 dated 10-7-98 - Inspection of Upper Left Hand tailboom attachment
Originally published 6/26/2014 This Letter from 1998 was submitted in relation to other posts on the blog regarding the Upper Left Hand...
Proposed Rule on Main Driveshaft
Posted by the Federal Aviation Administration on Mar 25, 2021 FAA Site link for this NPRM HERE Action Notice of proposed rulemaking...
Aviation Health and Usage Monitoring Systems (HUMS) for UH-1 Industry
Huntsville, Alabama - We are pleased to introduce RMCI, Inc. and their advanced Health and Usage Monitoring Systems, or HUMS. The...
Unintended Load Release Solution
There have been many unintended external load releases over the years and here is a simple way to reduce that number. Install this...
Proposed AD - Failure of Tailboom Attaching Points
FEDERAL REGISTER LINK TO MAKE COMMENTS Action Notice of proposed rulemaking (NPRM). Summary The FAA proposes to adopt a new airworthiness...
Main Rotor Drag Brace Outer Attaching Hardware
In my travels over the years I have found MANY aircraft with the main rotor outer drag brace bolt hardware incorrectly installed. General...
UH-1 Main Rotor Re-torque
This has been brought up before about a re-torque after main rotor installation. In this case the TM 55-1520-210-23-1 is not a help....
Lower Fuel Cell Floor Panels
Many lower fuel cell floor panels have been damaged in removal see attached photo. These panels should be removed every 3 & 6 phase or at...
Using the TM 55-1520-210-23P manuals
To assist those who were not military and taught how to read the TM Manuals for UH-1 Maintenance. On the text pages that go with the...
UH-1 Tailboom Motion Detection System
On September 16, 2013, about 1535 Pacific daylight time, a Garlick UH-1B, N204UH, experienced a tailboom separation while logging in...
