# Harris Aerial H18 - Type: Aircraft model (FAA registry) - Registry code: 06101SF - Manufacturer (registry): HARRIS AERIAL - Model: H18 - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 8 ยท Electric - Seats: 0 - Weight class: Unmanned, up to 55 lb - Certification: Not type certificated - Registered aircraft: 0 - Page: https://openairdocs.org/model/harris-aerial-h18 Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft None registered with this model now. ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (26) As reported by operators and repair stations, by the model named in the report. - [SDR 2008FA0000871](https://openairdocs.org/sdr/2008FA0000871), Nov 1, 2008: SPAR. CRACKED. HAVE JUST HAD THE SPAR X-RAY ACCOMPLISHED IAW AD75-27-09 R2. UPON REVIEW OF THE X-RAYS IT WAS DETERMINED THAT THERE WAS A CRACK. IT SEEMS THIS CRACK OF A VERY S - [SDR FAA122808001](https://openairdocs.org/sdr/FAA122808001), Dec 28, 2007: BOLT. SHEARED. DURING THE INVESTIGATION. IT WAS DISCOVERED THAT THE REMAINDER OF THE BOLT FOR NOSE GEAR RETRACT PUSH PULL TUBE TO CANTILEVER ARM FOR DRAG BRACE HAD SHEARED ON - [SDR SDR08310526](https://openairdocs.org/sdr/SDR08310526), Aug 31, 2005: OVERHEAT SENSOR. SHORTED. DURING CLIMB, A RIGHT WING OVERHEAT INDICATION. SELECTED GEAR DOWN, AND CONDITION CONTINUED. SHUT RT ENGINE DOWN, AND RETURN TO KSDF. MX INSPECTED THE RT WING L - [SDR 2003FA0001242](https://openairdocs.org/sdr/2003FA0001242), Dec 5, 2003: CONTACTOR. MALFUNCTIONED. UPON LANDING THE AIRCRAFT, THE LANDING GEAR FAILED TO EXTEND DUE TO A MALFUNCTION OF THE LANDING GEAR MOTOR CONTRACTOR. PROBLEM WAS DUPLICATED WITH THE AIRCRAFT - [SDR 11060230](https://openairdocs.org/sdr/11060230), Nov 13, 2002: ENGINE. FLAMED OUT. BOTH ENGINES FLAMED OUT. INSPECTION DID NOT REVEL ANY MECHANICAL MALFUNCTION. AIRCRAFT LANDED SAFELY. DID NOT RELIGHT ON THEIR OWN. - [SDR 20010420CW006](https://openairdocs.org/sdr/20010420CW006), Apr 20, 2001: DISTRIBUTOR. BROKEN. LEFT MAGNETO, LEFT ENGINE FAILED CHECK DURING RUN UP. MAINTENANCE DISCOVERED SEVERAL BROKEN/ UNSERVICEABLE PARTS INSIDE MAGNETO WHEN DISTRIBUTOR COVER REMOVED D - [SDR 99ZZZX4622](https://openairdocs.org/sdr/99ZZZX4622), Sep 16, 1999: SPAR. CRACKED. INTERNAL CORROSION AND CRACKS ON MAIN WING SPAR. INDICATIONS WERE FOUND ON RADIOGRAPHIC VIEWS. REFERENCE AD 75-27-09 R2 COPY OF INSPECTION. - [SDR 98ZZZX30](https://openairdocs.org/sdr/98ZZZX30), Oct 3, 1997: SPAR. CORRODED. CORROSION REVEALED ON FRONT SPAR LT WS 32, WS 46, AND WS 81 AND RT WS 32. - [SDR 98ZZZX29](https://openairdocs.org/sdr/98ZZZX29), Oct 3, 1997: SPAR. CORRODED. CORROSION REVEALED ON FRONT SPAR LT WS 32, WS 46, AND WS 81 AND RT WS 32. REF: AD 75-27-09 R2 AND AMDT 39-3878. - [SDR 97ZZZX4152](https://openairdocs.org/sdr/97ZZZX4152), Aug 4, 1997: SPAR. CRACKED. INSPECTION FOUND LOWER SECTION OF LEFT VERTICAL FIN HAD SEVERAL CRACKS EMANATING FROM UPPER LIGHTENING HOLE. CRACKS GREW LARGER WHEN SLIGHT SIDE PRESSURE APPLIE - [SDR 97ZZZX3702](https://openairdocs.org/sdr/97ZZZX3702), Aug 4, 1997: CYLINDER. CRACKED. WHILE C/W AD 78-08-07 (CYLINDER CRACKS), FOUND CYLINDER WALL HAS EXHAUST RESIDUE AFTER 181 HOURS IN SERVICE. 35 HOURS SINCE LAST VISUAL INSPECTION 12 MONTHS PRE - [SDR 97ZZZX3685](https://openairdocs.org/sdr/97ZZZX3685), Jul 31, 1997: BATHTUB FITTING. BROKEN. WHILE JACKING UP AIRCRAFT DURING ANNUAL INSPECTION, A 'POPPING' NOISE WAS HEARD COMING FROM CENTER SECTION. INSPECTION REVEALED RIGHT CENTER SPAR STRAP BATHTUB - [SDR 97ZZZX2845](https://openairdocs.org/sdr/97ZZZX2845), Jun 2, 1997: ENGINE. MAKING METAL. WHILE IN CRUISE FLIGHT, PILOT NOTICED OIL LEAK ON LEFT ENGINE. ENGINE WAS SECURED, PROPELLER FEATHERED, AND AN UNEVENTFUL LANDING MADE. MAINTENANCE FOUND PROPEL - [SDR 97ZZZX2062](https://openairdocs.org/sdr/97ZZZX2062), May 1, 1997: STRUCTURE. CRACKED. AD 75-27-09 PERFORMED ON OUTBOARD WING AT WS 111 AND WS 102. X-RAYS REVEALED LINEAR INDICATIONS AT WS 111 AND CORROSION AT WS 102. FILMS SENT TO BEECHCRAFT FOR - [SDR 97ZZZX2060](https://openairdocs.org/sdr/97ZZZX2060), Apr 15, 1997: ENGINE. SEIZED. WHILE IN CRUSE FLIGHT, PILOT NOTICED OIL PRESSURE STARTING TO DECREASE AND OIL TEMP STARTING TO RISE. ENGINE WAS SECURED, PROP WAS FEATHERED, AND A PRECAUTIONAR - [SDR 97ZZZX565](https://openairdocs.org/sdr/97ZZZX565), Jan 7, 1997: DUCT. HOLE BURNED. FOUND OUTBOARD INDUCTION HEAT DUCT BURNED THROUGH (APPROXIMATELY 6 INCH HOLE). OLD DUCT APPEARED TO BE SCAT HOSE. NEW PART WAS MUCH HEAVIER AND OVAL SHAPED. REP - [SDR 97ZZZX564](https://openairdocs.org/sdr/97ZZZX564), Jan 7, 1997: DUCT. HOLE CHAFED. WHILE CONDUCTING OTHER WORK ON RIGHT ENGINE, FOUND HOLE CHAFED IN INBOARD INDUCTION HEAT DUCT. THIS AREA HAD PREVIOUSLY BEEN REPAIRED USING A SILICONE SEALER MA - [SDR 97ZZZX563](https://openairdocs.org/sdr/97ZZZX563), Jan 7, 1997: DUCT. DETERIORATED. WHILE REPAIRING EXHAUST SYSTEM, FOUND DUCT COLLAPSED AND BADLY DETERIORATED. OLD DUCT APPEARED TO BE ORANGE SINGLE WALL SCAT HOSE. NEW DUCT WAS BLACK HEAVY DOUB - [SDR 97ZZZX562](https://openairdocs.org/sdr/97ZZZX562), Jan 7, 1997: DUCT. DETERIORATED. DURING REPAIR OF RIGHT EXHAUST, FOUND DUCT BADLY DETERIORATED AND COLLAPSED. OLD DUCT APPEARED TO BE SINGLE WALL SCAT HOSE. NEW DUCT WAS DOUBLE WALLED, HEAVIER, - [SDR 97ZZZX561](https://openairdocs.org/sdr/97ZZZX561), Jan 7, 1997: SPRING. MISSING. WHILE CLEANING DEBRIS FROM EXHAUST FAILURE, FOUND SPRING MISSING. SPRING HAD APPARENTLY BEEN MISSING FOR SOME TIME FROM APPEARANCE OF MOUNTING HOLES. - [SDR 97ZZZX566](https://openairdocs.org/sdr/97ZZZX566), Jan 6, 1997: EXHAUST STACK. BULGED. LEFT ENGINE EXHAUST WAS INSPECTED AFTER FAILURE OF RIGHT ENGINE EXHAUST STACK. EXHAUST STACK WAS FOUND BULGED IN SAME AREA AS FAILURE OF RIGHT STACK (NR 7 CYL). - [SDR 97ZZZX560](https://openairdocs.org/sdr/97ZZZX560), Jan 6, 1997: EXHAUST STACK. HOLED. PILOT REPORTED RIGHT ENGINE QUIT WHEN INDUCTION HEAT SELECTED DURING RUN-UP. CARBURETOR TEMPERATURE GAUGE WENT OFF TOP OF SCALE. INVESTIGATION REVEALED 2 INCH B - [SDR 97ZZZX559](https://openairdocs.org/sdr/97ZZZX559), Jan 6, 1997: ADAPTER. BURNED. WHILE REPAIRING DAMAGE CAUSED BY EXHAUST STACK FAILURE, FOUND OUTBOARD END OF ADAPTER UPPER SIDE BURNED AND MELTED APPROXIMATELY 3 INCHES. MATERIAL MIGRATED INT - [SDR 97ZZZX558](https://openairdocs.org/sdr/97ZZZX558), Jan 6, 1997: ADAPTER. DISCONNECTED. DURING INSPECTION OF LEFT ENGINE EXHAUST AS A RESULT OF RIGHT EXHAUST FAILURE, FOUND INBOARD HEAT DUCT DISCONNECTED. THIS WAS DUE TO COLLAPSE OF THE END OF THE - [SDR 96ZZZX5286](https://openairdocs.org/sdr/96ZZZX5286), Sep 1, 1996: CABLE. SLIPPED. PILOT COULD NOT REDUCE POWER TO RT ENGINE DURING FLIGHT, RT ENGINE WAS FEATHERED FOR LANDING. INSPECTION REVEALED POWER CABLE ATTACH POINT AT FUEL CONTROL UNIT - [SDR 95ZZZX2424](https://openairdocs.org/sdr/95ZZZX2424), Apr 5, 1995: BEARING. FAILED. OUTER WHEEL BEARING CAME APART ALLOWING WHEEL TO COME OFF AIRCRAFT ON TAKEOFF. ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Beech H-18](https://openairdocs.org/model/beech-h-18): 28 registered aircraft, registry code 1151012 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.