PC-12/47E Pilot's Operating Handbook
PILATUS PC-12 NG · Pilot's Operating Handbook
Overview
This document is a Temporary Revision No. 31 to the PC-12/47E Pilot's Operating Handbook, issued to update the engine start procedure in light of potential loss of avionics or engine indications during engine start. It includes specific instructions for handling such situations and is applicable to certain aircraft serial numbers.
- This revision updates Section 4 – Normal Procedures.
- It is valid for PC-12/47E aircraft MSN 1720, 2001 and up.
- The EPECS will abort an engine start under specific conditions.
- Loss of avionics/engine indications requires the ENGINE switch to be turned OFF.
- Maintenance must be reported for ITT exceedance checks.
- The document is EASA approved under Approval Number: 10087600.
- The revision was issued on July 16, 2025.
- Operators must record the incorporation of this revision.
Document
Source
Originally published by admin.ch. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Pilot's Operating Handbook
- Year ·
- 2025
- File size ·
- 139 KB
- Publisher ·
- admin.ch
- Language ·
- en
What is the PC-12/47E Pilot's Operating Handbook?
The PC-12/47E Pilot's Operating Handbook is a pilot's operating handbook for the PILATUS PC-12 NG, dated 2025.
Where does the PC-12/47E Pilot's Operating Handbook come from?
This copy of the PC-12/47E Pilot's Operating Handbook was originally published by admin.ch and is hosted on Sprinkle as a free, searchable reference copy.
What year was the PC-12/47E Pilot's Operating Handbook published?
The PC-12/47E Pilot's Operating Handbook — the PILATUS PC-12 NG pilot's operating handbook on file — is dated 2025.
Most owners only have the POH. Here's the essential set for the PILATUS PC-12 NG.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
More PILATUS PC-12 NGmanuals & documents
In this document
Engine Start Procedure Update
The engine start procedure has been updated to include actions to take in the event of a loss of avionics or engine indications.
EPECS Abort Conditions
The EPECS will automatically abort an engine start if ITT exceeds limits, a hung start occurs, no light-off is detected, or the starter switch is pushed during the starting sequence.
Actions on Loss of Indications
In case of loss of avionics/engine indications, the ENGINE switch must be turned OFF and the flight aborted.
Maintenance Reporting
Any loss of avionics/engine indications must be reported to maintenance for ITT exceedance checks.
Normal Engine Start Conditions
If ITT stays within limits, Ng should be stable at 64.5%. If Ng is below 50% and the start is not aborted, the STARTER switch should be pushed momentarily.
Final Checks
After a stable Ng, check engine instruments, GEN 1 and GEN 2, reset fuel, and disconnect external power if used.
Safety notes
- The EPECS will abort an engine start if ITT exceeds limits.
- Loss of avionics/engine indications requires immediate action.
- Do not push the starter switch during the starting sequence.
- Report any ITT exceedance to maintenance.
- Ensure engine instruments are stable in the green range.
Full document text
TEMPORARY REVISION NO. 31 TO PC-12/47E PILOT'S OPERATING HANDBOOK REPORT NO. 02406 LOSS OF AVIONICS / ENGINE INDICATIONS DURING ENGINE START Loss of avionics / engine indications during engine start EASA Approved Report No: 02406 Issued: July 16, 2025 1 of 2 Section 4 This Temporary Revision changes the engine start procedure for the PC-12/47E aircraft and updates: - Section 4 – Normal Procedures. This Temporary Revision is valid for PC-12/47E aircraft MSN 1720, 2001 and up. The technical content of this document is approved under the authority of the DOA ref. EASA.21J.357. The AFM 02406 TR 31 is EASA approved under EASA Approval Number: 10087600. Approval date: 16.07.2025. Insert this Temporary Revision at the front of the POH. Record the incorporation of this Temporary Revision on the Log of Temporary Revisions. Section 4 NORMAL PROCEDURES 4-5-01 Engine Start (With or Without External Power) Replace the following note: Note The EPECS will automatically abort an engine start if any of the following cases occur: − ITT exceedance − Hung start − No light-off − The starter switch is pushed during the starting sequence. In this event the EPECS will immediately command a 30 second dry motor run, the green STARTER annunciator in the PFD engine window comes on. With the note below: Note The EPECS will automatically abort an engine start if any of the following cases occur: − ITT exceedance (not in case of loss of avionics / engine indications) − Hung start − No light-off − The starter switch is pushed during the starting sequence. In this event the EPECS will immediately command a 30 second dry motor run, the green STARTER annunciator in the PFD engine window comes on. TEMPORARY REVISION NO. 31 TO PC-12/47E PILOT'S OPERATING HANDBOOK REPORT NO. 02406 LOSS OF AVIONICS / ENGINE INDICATIONS DURING ENGINE START Report No: 02406 EASA Approved Loss of avionics / engine indications during engine start Section 4 2 of 2 Issued: July 16, 2025 Replace the following information: If ITT stays within limits: 11. Ng............................................... STABLE at 64.5% If Ng stays below 50% and the start is not automatically aborted: 12. STARTER switch......................... PUSH momentarily If NG stable: 13. Starter sequence......................... COMPLETED 14. Engine instruments..................... STABLE in green range 15. GEN 1 and GEN 2...................... Check volts and amps 16. FUEL RESET soft key................ Push to reset 17. External Power Unit (if used)...... Disconnect With the updated information below: If there is a loss of avionics / engine indications, even momentarily, then: 11. ENGINE switch........................... OFF Abort the flight Report to maintenance (to check for ITT exceedance) If ITT stays within limits: 12. Ng............................................... STABLE at 64.5% If Ng stays below 50% and the start is not automatically aborted: 13. STARTER switch......................... PUSH momentarily If NG stable: 14. Starter sequence......................... COMPLETED 15. Engine instruments..................... STABLE in green range 16. GEN 1 and GEN 2...................... Check volts and amps 17. FUEL RESET soft key................ Push to reset 18. External Power Unit (if used)...... Disconnect