Description of the engines:
Important Notice Regarding Current Status & Operational Potential:
The comprehensive maintenance and servicing work on this helicopter has been fully completed. The aircraft is finished, fully airworthy, and has 240 remaining hours available until its next major overhaul. As part of the recent maintenance, key components including the fanwheel assembly were replaced with new parts. Additionally, main rotor blades with an extended remaining calendar life have been installed. This allows the helicopter to be operated privately for up to six more years within its remaining hours before the overhaul is due.
Overview & Key Specifications:
Aircraft Make / Model: Robinson R44 Raven I
Registration: D-HALZ
Serial Number: 2148
Price: Excl. 19% German VAT
Aircraft Total Time (ACTT): approx. 4,160 h (4,159:58 h as of Oct 22, 2026)
Remaining Time: 240 operating hours until overhaul
Operational Potential: Up to 6 years of private operation within remaining hours
Rotor Blades: Installed blades feature extended calendar life
Status: Fully maintained, ready for immediate service, and released under a Certificate of Release to Service (CRS)
Engine & Ignition System
Retard Magneto: Replaced with overhauled unit (P/N 10-600616-3, S/N G-03368) supported by EASA Form 1 (Document M26-0274).
Tachometer Magneto: Replaced with overhauled unit (P/N 10-600646-201, S/N E07FA193) supported by FAA Form 8130-3.
Engine Inspection: Special inspection performed in accordance with Lycoming SB 369 S.
Cylinder Compression Test
Cylinder #1: 76/80
Cylinder #2: 79/80
Cylinder #3: 77/80
Cylinder #4: 74/80
Cylinder #5: 77/80
Cylinder #6: 75/80
Valve & Tappet Clearance: Inspections accomplished per Lycoming SB 388C and SB 480F.
Oil Analysis: Spectrographic analysis by Spectro Jet-Care from Oct 26, 2026 confirmed normal condition ("NORMAL").
Rotor & Control Systems
Main Rotor Blades: Blades with extended calendar life installed; removed, inspected, and serviced per RHC MM 28-10, 28-12.
Rotor Special Inspection: Completed per Robinson MM 2.540 Part A.
Main Rotor Track & Balance: Flight test completed per RHC 10.230 (Results: Hover 0.10 IPS; in-flight track within 3/8 inch across all speeds).
Swashplate: Cleaned, adjusted, retorqued (friction value: 3.5 lbs), and lubricated per RHC MM 2.640.
Main Rotor Hub: Friction adjusted per RHC MM 28-32 Part A to 10.5 ft-lb.
Control Forks: Upper and lower forks cleaned and friction checked per RHC MM 2.410 Part 11.
Modifications/changes:
Detailed Breakdown of Maintenance & Work Performed (October 2026)
Drive & Cooling System (New Parts)
Fanwheel Assembly: Installed new fanwheel (P/N D174-2, REV. P, Lot 776) and dynamically balanced per RHC MM 6.240 (Result: 0.09 IPS @ 122).
Fanshaft & Bearings: Installed new fanshaft assembly (P/N C007-5, S/N 14035) including new bearing (P/N C181-3 Rev. j).
Documentation: All new parts accompanied by FAA Form 8130-3.
Status of the inspection:'
Additional Maintenance Items
Cylinder #4: Installed 2 new thrust buttons on rocker shaft.
Ventilation & ELT: Intake hose (P/N A785-11) and ELT antenna connections inspected for security and recorded on Form STH-GMD-004.
Foreign Object Debris (FOD): Full inspection performed to clear tools and loose items, and panels secured.
Other comments:
Contact & Viewing
> The helicopter is ready for immediate inspection and test flights. Complete maintenance history, logbooks, and all EASA Form 1 / FAA Form 8130-3 documents are available.
