USED Original De Havilland Servicing School Phase 1 Maintenance Engineers’ Lecture Notes for DH-121 Trident aircraft p/n: n/a Sec/ref: n/a NSN: n/a qty: 1 Plain length: n/a Thread length: n/a In very good used condition, some grubbiness to some pages through use. Lots of hand drawn diagrams and handwritten notes throughout. Not checked for completeness No amendment list or issue date but marked as First Issue Please see pictures for items covered and condition.
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