I agree with Newps, what part of the 337 process does the company or your
A&P feel that the docking station falls under?? There was an AC issued
asking pilots and mechanics to study the definition and intent of the 337,
it said that too many pilots and too many mechanics were filing and
requesting 337 approval for minor alterations and repairs.

The only thing I could find about a permanent installation that was not a
major alteration or repair concerned interfering with the exiting of the
aircraft in emergency situations.

Jim

"Major alteration" means an alteration not listed in the aircraft, aircraft
engine, or propeller specifications--

(1) That might appreciably affect weight, balance, structural strength,
performance, powerplant operation, flight characteristics, or other
qualities affecting airworthiness; or
(2) That is not done according to accepted practices or cannot be done by
elementary operations.
"Major repair" means a repair:

(1) That, if improperly done, might appreciably affect weight, balance,
structural strength, performance, powerplant operation, flight
characteristics, or other qualities affecting airworthiness; or
(2) That is not done according to accepted practices or cannot be done by
elementary operations.

http://www.airweb.faa.gov/Regulatory...C?OpenDocument