1、Lessons Learned Entry: 0169Lesson Info:a71 Lesson Number: 0169a71 Lesson Date: 1994-01-20a71 Submitting Organization: LERCa71 Submitted by: S. PapellSubject: Fire in Fueling Station During Piping Modification Description of Driving Event: A fire started at the flight operations aircraft fueling stat
2、ion when a pumping station was in the process of being connected to a new, in-ground, aviation fuel storage tank. Residual fuel had been left in the refueling unit because the connection was to be made with no disruption to any of the unit piping. The workers installing the unit, when faced with a s
3、ix inch difference in the tank piping from the unit inlet, decided to modify the piping. When the workers broke into the unit piping and saw some residual fuel leaking they assumed the amount to be negligible. A stand was set up within 10 feet of the pipe opening and a grinding operation was started
4、 to add a short section of pipe.The investigation committee determined that the ignition source of the fire was from sparks generated by the grinding operation.Lesson(s) Learned: Modification to aircraft fueling station piping that requires grinding should only be initiated with proper safety precau
5、tions.Recommendation(s): Completely drain fuel tanks and lines prior to conducting any grinding operations where flammable liquids have been stored. Insure that spark shields and/or fire blankets are used to prevent contact with combustibles.Provided by IHSNot for ResaleNo reproduction or networking
6、 permitted without license from IHS-,-,-Evidence of Recurrence Control Effectiveness: Recommendations were approved by the LERC executive safety board.Documents Related to Lesson: N/AMission Directorate(s): N/AAdditional Key Phrase(s): a71 Energetic Materials - Explosive/Propellant/Pyrotechnica71 Facilitiesa71 Ground OperationsAdditional Info: Approval Info: a71 Approval Date: 1994-04-19a71 Approval Name: Evan E. Blancoa71 Approval Organization: LERC/501-4a71 Approval Phone Number: 216-433-8717Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
