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No power on airplane: battery disconnected, external Power Cord disconnected from airplane, __________________________ DateSignature of Supervisor or Designee _______________________________________________ I confirm that all entry requirements were met prior to any entry. Meter Readings Combustible gas meter (LEL) reading: _________________________ By (FD): ___________________17. Fuel vapor level reading (ppm): _________________________ By: _____________________________16. Oxygen reading (%): _________________________ By: __________________________________________15. Fire Department notified.14. Sponges available for residual fuel mop out.10. Shop personnel entering cells and standby observers have current "fuel cell entry"13. . . . Respirator Use and Maintenance Aircraft Confined Space Entry Safety certification cards. Certification requires the following training: 12. Mechanical ventilation (venturis or blowers) installed to ventilate all open fuel cells. 11. excessive odors are noted, all work shall stop and fuel cells must be evacuated. If ventilation system fails or any ill effects such as dizziness, irriation, or Ventilation system must remain in operation at all times while fuel cells are open.____NOTE: All plugs used have streamers attached. Aerators checked for cleanliness prior to use. approved coveralls, caps and foot coverings, and eye protection. including appropriate personal protective equipment: OSH class 110 respirator at a minimum, Ensure requirements listed on Aircraft Confined Space Entry Permit are complied with, and external power receptacle placarded. 1. 9. 8. Trained attendant and confined space logsheet required for all wet fuel cell entries. 7. blowers, pressure and test equipment, etc.). 6. 5. Only approved explosion proof equipment and tools will be used for fuel cell entry (lights, 3. Boost pump switches off and circuit breakers pulled and placarded. 4. 2. Area secured and warning signs positioned. Airplane and adjacent equipment properly grounded. Radio and radar equipment off (see separation distance requirements). Wet Fuel Cell Entry

Fuel Tank Pre-Entry Checklist (Example)
Figure 206

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 28-11-00
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G56882
A
757
MAINTENANCE MANUAL

 (4)  
Combustible gas indicator - explosion-proof Use one of these indicators or equivalent:

 (a)  
Gastech GT series indicator

 (b)  
Gastech 1314 Super Surveyor

 (c)  
Gastech 1314 SMPN Super Surveyor
 Available from:
 Gastech Inc.
 8407 Central Avenue,
 Newark, California, USA

 (5)  
　
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