Borescope Inspection Log
Borescope Inspection Log with structured readings per session — build the longitudinal trend record that single measurements can't provide.
The green/asymmetric exhaust valve image is the canonical early warning: caught at inspection it's a lapping job, missed it's a swallowed valve.
No entries yet — add your first one above. Data stays in your browser.
⚠️ Not for operational decisions. This is a record-keeping and planning aid only — not certified avionics, not a source of regulatory truth. Always verify against official sources (FAA) and your operator's approved documents before flying.
Free borescope inspection log: structured per-session readings that build the trend record — because the green/asymmetric exhaust valve image is the canonical early warning.
About Borescope Inspection Log
What separates owners who catch engine problems early from those who meet them at altitude is rarely equipment — it's records. Borescope inspection has become the decisive cylinder health check — valve color and seat condition predict failures compression numbers miss entirely. And the diagnostic punchline: the green/asymmetric exhaust valve image is the canonical early warning: caught at inspection it's a lapping job, missed it's a swallowed valve. This tool is that record: structured fields, dated sessions, per-aircraft separation, CSV out. The trend does the diagnosing; the log just makes the trend visible.
How to use Borescope Inspection Log
- 1Log the structured readings after each flight, sample or service event.
- 2Scan the table for drift against your own baseline before reacting to single values.
- 3Export the trend record for your mechanic, engine shop or analysis lab.
Why use Borescope Inspection Log?
- ✓Identical structured fields every session — trends stay comparable
- ✓Per-aircraft/engine separation for multi-aircraft owners
- ✓12-month activity tile shows whether the record is staying alive
- ✓Captures the signal that matters: the green/asymmetric exhaust valve image is the canonical early warning
- ✓CSV export turns maintenance conversations into data reviews
Frequently asked questions
Why borescope when compression checks exist?+
Because compression is a pressure test while the borescope is an eyewitness: a burning exhaust valve can hold acceptable pressure for hundreds of hours while its face discolors and distorts — visible in seconds through the scope. Modern guidance treats the two as complements at every annual and any low/odd compression. Logging area, result and findings per session builds the photographic trend story your engine shop will actually use.
How often should these readings be logged to be useful?+
Often enough that the series outweighs the noise: every oil change for analysis-type records, every flight or weekly for monitor-derived numbers, every annual for inspection-type checks. The honest rule is consistency over frequency — six identical-format entries a year beat sporadic bursts, because trend reading depends on comparable conditions and unbroken sequence more than on raw volume.
Where is this data stored?+
Everything you enter is saved in your browser's local storage on your own device — nothing is uploaded to any server. Your records stay completely private, work offline, and load instantly. Use the CSV export regularly to keep an off-device backup copy.
How do I back up or print these records?+
Use the Export CSV button below the table: it downloads your full engine condition record as a spreadsheet-ready file. From there you can print a clean copy, archive it with your records folder, or import it into any other system. Exporting monthly is a good habit since the working data lives only in your browser.
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