Operating context
The available TB9 information states that the type may be equipped for day/night IFR when the applicable supplement and installation are present. Flight into known icing is prohibited. This reference does not yet establish that G-SCOP's serial-specific paperwork and present equipment satisfy every condition for IFR dispatch.
The conventional panel is valuable for learning attitude/performance flying, instrument scan and raw-data navigation. Modern equipment should fill actual capability or resilience gaps rather than replace serviceable independent equipment without reason.
Known discrepancies and work in progress
| Ref | Item | Status | Required disposition |
|---|---|---|---|
| DEF-001 | Fuel quantity gauges reported inoperative | Open; potentially grounding for VFR and IFR | Enter/confirm the defect, diagnose gauges, senders, wiring and power, calibrate as required, and obtain proper release to service. |
| DEF-002 | Garmin GPSMAP 295 failed | Remove/scrap; not to be counted as backup | No approved IFR capability is lost. Remove obsolete installation cleanly and update records as required. |
| WORK-001 | Existing 25 kHz COM replacement/upgrade | Reported in progress | Record final model, 8.33 kHz capability, interfaces and release to service. |
Baseline evidence to establish
- Confirm the AFM/POH and applicable supplements permit the intended day/night IFR operations.
- Reconcile the physical panel with the equipment list, modification records and weight-and-balance schedule.
- Verify pitot heat, static system, altimeter, ASI and VSI condition and test status.
- Verify attitude, turn/slip and stabilised-heading instruments, including gyro power or failure warning.
- Confirm OAT, accurate time display, low-voltage/charging indication and practical electrical endurance.
- Identify every NAV indicator, glideslope channel, source selector, flag and annunciator.
- Test COM, NAV, DME, ADF, transponder and antenna systems in their installed configuration.
Useful model-level figures
The available TB9 pilot-information manual includes the following points. They remain subject to serial, revision and configuration applicability:
- Total fuel 41.7 US gal, stated usable fuel 40.2 US gal.
- A demonstrated crosswind of 25 kt; the handbook definition says this certification demonstration is not itself a limit.
- Landing distance increases quoted for surface and wind conditions, including 7% hard sod, 10% short grass and 25% high grass.
- A flapless landing calls for an 80 KIAS approach and approximately 60% greater landing distance.
- The IFR/ILS supplement contains TB9-specific power and speed guidance and warns of possible KING localiser indication interference around certain engine speeds/frequencies.
These are reference prompts, not a substitute for checking the approved handbook pages carried for G-SCOP before flight.
Working principles
- Repair and document the airworthy baseline before optional avionics work.
- Understand the installed source, display, power supply and failure mode before replacing equipment.
- Preserve useful independence between conventional radio navigation and GNSS.
- Keep certified aircraft functions separate from portable situational-awareness functions.
- Obtain an installed price and approval path, not merely a box price.