Collins Avionics Horizontal Situation Indicator HSI-85 

P/N 622-4176-001

S/N 1013

Condition: Excellent 

Repaired and OVERHAULED w/traceable paperwork (see pics) 1/15/2009

Item is guaranteed functional.

TESTED AND CERTIFIED I/A/W MFG SPECIFICATIONS

Trace to 121 Domestic Airline

30-Day Money Back Guarantee.

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Location: PS-6B3A (JS1)