Page 24 - Volume 13 Number 8

need immediate attention but can be monitored and fixed at the next HSI. Occasionally the borescope finds something that needs to be addressed right away.
Certainly, if you operate regularly within 100 miles of the coast or in and around big cities with frequency, insist on turbine compressor washes.
My final recommendation is to keep good records. Trend mon­ itoring on your engines could reveal a slow, subtle change that you wouldn’t notice until you start comparing the figures from last week to last year. Further, trend monitoring comes in very handy when the engines go back together and you are trying to compare post­ inspection performance with the way they ran beforehand. If you have it in writing, there is no guesswork.
substantial bite out of your budget. And, as mentioned in the opening paragraph, the HSI could lead to issues elsewhere in the engine that must be addressed.
While I hope that all of your inspections go smoothly with no expensive snags, let’s not forget the whole purpose of these inspections – to find and fix a developing problem before anything catastrophic happens.
Have confidence in your engines and keep enjoying your King Air. KA
Dean Benedict is a certified A&P, AI with nearly 45 years’ experience in King Air maintenance. He’s the founder and former owner of Honest Air Inc., a “King Air maintenance boutique” (with some Dukes and Barons on the side). Now, with BeechMedic LLC, Dean consults with King Air owners and operators on all things King Air related: maintenance, troubleshooting, pre-buys, etc. He can be reached at dr.dean@beechmedic.com or (702)
My main message is that HSIs
can be very unpredictable. Engines
that have been running perfectly
fine before the HSI can take a 773-1800.
22 • KING AIR MAGAZINE
AUGUST 2019