Repair Of Fuel Cells; Handling Of Repair Materials - Piper Cheyenne IIIA Airplane Maintenance Manual

PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
A. Storage (continued)
13. Repair of Fuel Cells
CAUTION: THE REPAIR OF LORAL VITHANE FUEL CELLS SHOULD BE RESTRICTED TO
AUTHORIZED PERSONNEL WHO HAVE BEEN CERTIFIED AND TRAINED BY
LORAL REPRESENTATIVES, OR WHO HAVE RECEIVED THEIR TRAINING FROM
PERSONS WHO HAVE BEEN CERTIFIED AND TRAINED BY LORAL
REPRESENTATIVES.
NOTE: The following repair procedures are in accordance with the cell manufacturers repair
procedure.
The following are recommended field repair procedures for fuel cells constructed of Loral BTC - 85
material. Any of three methods may be used for repairs: heat cure, air cure, or quick cure. All
repairs are neat and permanent. Heat cure repairing allows cells to be cured and ready for
installation in two hours. Air cure repairing requires that the cell not be moved for 72 hours or
longer. Quick cure repairing can be used on cells that have minor damage and can be repaired in
six hours.
14. Handling of Repair Materials
CAUTION: REPAIR CEMENT FOR HEAT AND AIR CURE REPAIRS (5923C) AND QUICK
CURE REPAIRS (82C32) REQUIRES THOROUGH MIXING TO OBTAIN FULL
ADHESIVE VALUES.
CAUTION: ALL CONTAINERS FOR CEMENTS AND SOLVENTS SHOULD BE PROPERLY
IDENTIFIED.
(a) Protect repair materials from dirt, contamination, sunlight. and excessive heat or cold during
storage. Containers are to be tightly capped and stored between 30°F and 85°F temperature.
(b) Mix repair cements immediately before application.
(c) Refer to each curing method for pot life of mixed cement.
NOTE: Unmixed repair cements have a shelf life designated by Loral on the storage
containers.
EFFECTIVITY:
28-10-00PAGE
15
Jan
10/90