Steam Locomotive Firebox Explosion on the Gettysburg Railroad ...

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Roof Sheet of Boiler Knuckle / / — “ - — - —-— - — — .~- — —-— - <strong>Firebox</strong> --- —. I I I 1 Figure 7. Alternating pattern of stays.
Figure 8. Backhead. The engineer told Safety Board like the injector, could be adjusted to allow a investigators that he removed the original variable amount of water into the boiler, or feed-pump gage after it failed and that when none when the feed pump was turned off. the replacement also failed, he had decided not to replace it. The turret also provided steam to a number of other auxiliary devices, including A fireman uses the feed-pump pressure the dynamo. The dynamo was a steamgage to ensure that heated feed water is turbine-powered generator for the overcoming boiler pressure and is flowing locomotive headlight, cab lights, and waterinto the boiler. The gage provides a direct glass light. At the time of the accident, the indication that water is entering the boiler dynamo was connected to the turret, but the without the fireman looking at the water dynamo governor and the governor cap were glass. At the time of the accident, a missing, rendering the dynamo inoperative. distinctive pentagon-shaped brass control A portable gasoline-powered generator that knob with “feed-water pump” cast into it sat on the tender provided the power for the controlled the feed pump. <strong>Steam</strong> was headlight. In violation of the FRA’s redelivered from the boiler through the left quirements (49 CFR 230.42), the water glass turret, or distributing valve, to the feed did not have a working light. There were no pump via the control knob. The feed pump, working cab lights. 17
Page 1 and 2: PB96-917008 NTSB/SIR-96/05 NATIONAL
Page 3: STEAM LOCOMOTIVE FIREBOX EXPLOSION
Page 6 and 7: ANALYSIS General ..................
Page 9 and 10: INTRODUCTION At about 7:20 p.m. on
Page 11 and 12: INVESTIGATION Accident On the day o
Page 13 and 14: first fireman stated that he “alw
Page 15: n! t --- Kaae=2 —— —___ —
Page 18 and 19: led as helpers or backup relief for
Page 20 and 21: Delineation of Duties.--The followi
Page 22 and 23: gage cock 17 above the crownsheet w
Page 27 and 28: of service for 6 months, from Novem
Page 29: The FRA requires that “the lowest
Page 32 and 33: Figure 13. Plugged spindle after re
Page 34 and 35: he said, “Open the bottom valves
Page 36 and 37: /. ; ;. / Steam Ar
Page 38 and 39: supplies water to the boiler indire
Page 40 and 41: nozzles. The Advisory Mechanical Co
Page 43 and 44: The first steam-locomotive boiler e
Page 45 and 46: procedure that requires an inspecto
Page 47 and 48: ANALYSIS General The phenomenon of
Page 49 and 50: participated as investigators were
Page 51 and 52: There was also a discrepancy betwee
Page 53 and 54: among the members of the crew in th
Page 55 and 56: The Safety Board believes that the
Page 57 and 58: PROBABLE CAUSE The National Transpo
Page 59: of objective measurable standards.
Page 63: APPENDIX B Abbreviations Used in th

Steam Locomotive Firebox Explosion on the Gettysburg Railroad ...

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