| 41. | Some systems use an engine oil pressure sensor instead.
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| 42. | There was an indication of low oil pressure,
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| 43. | Other problems included insufficient fuel and oil pressure at altitude due to problems with the pumps.
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| 44. | In a July 1991 flight, the right engine lost oil pressure after an oil line ruptured.
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| 45. | At one point during tests on May 10, the oil pressure dropped and testing was stopped.
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| 46. | On the return flight, the oil pressure had dropped to about half an hour after departure.
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| 47. | Lap 38 saw another retirement, that of Ren?Arnoux in the Surtees with oil pressure difficulties.
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| 48. | The problem with the auxiliary power generator centered around the unit's oil pressure during engine tests.
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| 49. | Quicker oil pressure response improves startup performance and thus contributes to an improvement in fuel economy.
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| 50. | Halfway through a checklist, Kosich exclaimed : " The engine turns but there's no oil pressure ."
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