Log oil analysis results from Blackstone Labs. Use when the user has received oil analysis results and wants to record and interpret them.
The user has oil analysis results to log, or wants to review trends.
$ARGUMENTS
Read oil-analysis.tsv at:
~/Library/CloudStorage/[email protected]/My Drive/N720AK/Private/Maintenance/
Extract or ask for these fields:
Append a row to oil-analysis.tsv
Interpret the results — flag anything abnormal:
Universal action limits for Lycoming IO-540 (approximate, per Blackstone):
| Metal | Normal (ppm) | Watch | Concern |
|---|---|---|---|
| Iron (Fe) | < 30 | 30-50 | > 50 |
| Chromium (Cr) | < 5 | 5-10 | > 10 |
| Nickel (Ni) | < 2 | 2-5 | > 5 |
| Aluminum (Al) | < 10 | 10-20 | > 20 |
| Copper (Cu) | < 15 | 15-30 | > 30 |
| Lead (Pb) | < 30 | 30-50 | > 50 |
| Tin (Sn) | < 5 | 5-10 | > 10 |
| Silver (Ag) | < 1 | 1-2 | > 2 |
| Silicon (Si) | < 20 | 20-30 | > 30 |
Compare to previous samples — trend analysis is more important than absolute numbers. Flag:
Also update engine-log.tsv with a maintenance entry noting the oil analysis was logged.
oil-analysis.tsv and present a summary table