# N817SJ: 2024 Chompo AL18

- Status: Valid registration
- Airframe: [Chompo AL18](https://openairdocs.org/model/chompo-al18) (registry code 05642P8, 3 seats)
- Engine: [Lycoming YIO-390 series](https://openairdocs.org/engine/lycoming-yio-390-series) (registry code 42418)
- Serial number: AL-393
- Year built: 2024
- Type: Fixed wing single engine
- Engine type: 4 cycle
- Kit: American Legend Aircraft Co AL18
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 19, 2024
- Certificate issued: September 12, 2024
- Expires: September 30, 2031
- Mode S code: AB24F6
- Registered owner: [Chompo LLC](https://openairdocs.org/faa-owner/CHOMPO%20LLC)
- Location: [Las Vegas, NV](https://openairdocs.org/faa-place/NV/Las%20Vegas)
- Owner type: LLC
- Owner's area on the map: 36.0953° N, 115.3717° W: Placed by OpenAirDocs at the center of ZIP code 89135, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=817SJ
- Page: https://openairdocs.org/aircraft/N817SJ

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every Lycoming YIO-390 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Chompo AL18)

None in force.

### Matched by engine (Lycoming YIO-390 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N817SJ.

## FAA accident and incident reports

None matched to N817SJ.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N817SJ not matched to an aircraft (26)

They name N817SJ, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 97ZZZX2970](https://openairdocs.org/sdr/97ZZZX2970), Jun 14, 1997: TIRE. SEPARATED. AT ROTATION, FLIGHT CREW EXPERIENCED A NR 2 ENGINE COMPRESSOR STALL AND AIRCRAFT YAW TO RIGHT. AFTER REPORTS OF RUBBER ON RUNWAY, FLIGHT CREW RETURNED AND LANDE
- [SDR 97ZZZX2969](https://openairdocs.org/sdr/97ZZZX2969), May 2, 1997: COMPRESSOR. STALLED. DURING CLIMB-OUT FROM PIE WITH NORMAL POWER SELECTED AT ROTATION, FLIGHT CREW EXPERIENCED A COMRPESSOR STALL ON THE LEFT ENGINE. ENGINE PARAMETERS WERE NORMAL U
- [SDR 99ZZZM163](https://openairdocs.org/sdr/99ZZZM163), Jan 5, 1997: SLIDE. MALFUNCTIONED. DURING AN INADVERTENT DEPLOYMENT/JETTISON OF TAILCONE, EVACUATION SLIDE DEPLOYED BUT DID NOT INFLATE. REASON UNKNOWN. AIRCRAFT INSPECTION REVEALED THAT AIRCRAFT
- [SDR 96ZZZX312](https://openairdocs.org/sdr/96ZZZX312), Dec 15, 1995: UPLOCK SENSOR. INTERMITTENT. LGB/DFW - FLT 619 - AFTER TAKEOFF FROM LGB, THE RIGHT MLG UNSAFE LIGHT (RETRACT) REMAINED ON. RE-CYCLED LANDING GEAR, AND LIGHT WENT OUT. AIRCRAFT CONTINUED TO 
- [SDR 95ZZZM694](https://openairdocs.org/sdr/95ZZZM694), Oct 14, 1995: RETRACT MECH. MALFUNCTIONED. HAD TO CYCLE LANDING GEAR AFTER TAKEOFF DUE TO RIGHT MAIN (P/N 59305935508) LANDING GEAR UNSAFE INDICATION (RED LIGHT). LIGHT WENT OUT AFTER RECYCLE. JACKED AIR
- [SDR 96ZZZX1893](https://openairdocs.org/sdr/96ZZZX1893), Oct 11, 1995: BUTE DOOR. CRACKED. DURING C-CHECK, FOUND RT WING NR 4 BUTE DOOR CRACKED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41.431.
- [SDR 96ZZZX1892](https://openairdocs.org/sdr/96ZZZX1892), Oct 11, 1995: FITTING. CRACKED. DURING C-CHECK, FOUND VERTICAL STABILIZER, FORWARD RT FUSELAGE TO STABILIZER ATTACH FITTING CRACKED. REPLACED FITTING, PN 5920103-2. ACFT TT: 22,675 HRS. ACFT T
- [SDR 96ZZZX1891](https://openairdocs.org/sdr/96ZZZX1891), Oct 11, 1995: VANE. DELAMINATED. DURING C-CHECK, FOUND RT WING, OUTBOARD FLAP VANE DELAMINATED. REPLACED VANE, PN 593496-1. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1890](https://openairdocs.org/sdr/96ZZZX1890), Oct 11, 1995: VANE. DELAMINATED. DURING C-CHECK, FOUND RT WING, INBOARD FLAP OUTBOARD VANE DELAMINATED. REPLACED VANE, PN 5930495-504. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1889](https://openairdocs.org/sdr/96ZZZX1889), Oct 11, 1995: VANE. DELAMINATED. DURING C-CHECK, FOUND LT WING, NR 3 FLAP VANE DELAMINATED. REPLACED VANE, PN 5930496-1. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1888](https://openairdocs.org/sdr/96ZZZX1888), Oct 11, 1995: DOOR FRAME. CORRODED. DURING C-CHECK, FOUND FORWARD CARGO DOOR FRAME CORRODED, INBOARD AREA. REPAIRED IAW DC9 SRM CH 53. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1887](https://openairdocs.org/sdr/96ZZZX1887), Oct 11, 1995: COWL. DELAMINATED. DURING C-CHECK, FOUND NR 2 ENGINE UPPER COWL DELAMINATED. REPLACED COWL, PN 5930649-508. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1886](https://openairdocs.org/sdr/96ZZZX1886), Oct 11, 1995: RADOME. DELAMINATED. DURING C-CHECK, FOUND RADOME INTERIOR DELAMINATED. REPLACED RADOME, PN 59100913. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1885](https://openairdocs.org/sdr/96ZZZX1885), Oct 11, 1995: SKIN. CORRODED. DURING C-CHECK, LT WING, STA XRS 250, LOWER AFT SKIN CORRODED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1884](https://openairdocs.org/sdr/96ZZZX1884), Oct 11, 1995: SKIN. CORRODED. DURING C-CHECK, FOUND LT WING, STA XRS 295, LOWER AFT SKIN CORRODED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1883](https://openairdocs.org/sdr/96ZZZX1883), Oct 11, 1995: SKIN. CORRODED. DURING C-CHECK, LT WING, STA XRS 383 LOWER AFT SKIN CORRODED. REPAIRED IAW DC9 SR CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1882](https://openairdocs.org/sdr/96ZZZX1882), Oct 11, 1995: PANEL. CORRODED. DURING C-CHECK, FOUND LT WING LE PANEL AT STA XIS 198-205 CORRODED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1881](https://openairdocs.org/sdr/96ZZZX1881), Oct 11, 1995: TE PANEL. DISBONDED. DURING C-CHECK, FOUND RT WING UPPER SURFACE T/E PANEL FWD OF AILERON DISBONDED, XW 375. REPLACED PANEL, PN 5912737-502. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1880](https://openairdocs.org/sdr/96ZZZX1880), Oct 11, 1995: PANEL. CORRODED. DURING C-CHECK, FOUND RT WING L/E PANEL 1215C CORRODED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1879](https://openairdocs.org/sdr/96ZZZX1879), Oct 11, 1995: PANEL. CORRODED. DURING C-CHECK, FOUND RT WING L/E PANEL 1235C CORRODED. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1878](https://openairdocs.org/sdr/96ZZZX1878), Oct 11, 1995: PANEL. CORRODED. DURING C-CHECK, FOUND RT WING LOWER SURFACE LEADING EDGE PANEL CORRODED ON EXTERIOR SURFACE. REPAIRED IAW DC9 SRM CH 57. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 96ZZZX1877](https://openairdocs.org/sdr/96ZZZX1877), Oct 11, 1995: SKIN. CRACKED. DURING C-CHECK, LT MLG DOOR SKIN FOUND CRACKED. REPAIRED IAW DC9 SRM CH 52. ACFT TT: 22,675 HRS. ACFT TC: 41,431.
- [SDR 95ZZZX4501](https://openairdocs.org/sdr/95ZZZX4501), Aug 24, 1995: UPLOCK SENSOR. MALFUNCTIONED. UPON GEAR RETRACTION, LEFT MAIN LANDING GEAR UNSAFE LIGHT CAME ON. CYCLED GEAR, LIGHT WENT OUT. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. R
- [SDR 95ZZZM509](https://openairdocs.org/sdr/95ZZZM509), Aug 24, 1995: UPLOCK SENSOR. INTERMITTENT. UPON GEAR RETRACTION, LEFT MAIN LANDING GEAR UNSAFE LIGHT CAME ON. CYCLED GEAR, LIGHT WENT OUT. AIRCRAFT CONTINUED TO DESTINATION AND LANDED WITHOUT INCIDENT. R
- [SDR 95ZZZX1724](https://openairdocs.org/sdr/95ZZZX1724), Mar 14, 1995: UPLOCK SWITCH. INOPERATIVE. FLL - FLT 307 - ON TAKEOFF, UNABLE TO GET NOSE GEAR UP INDICATION. NOSE GEAR DOOR APPEARED TO STAY DOWN OR IN TRANSIT. CYCLED GEAR DOWN, ALL INDICATIONS NORMAL.
- [SDR 95ZZZX1723](https://openairdocs.org/sdr/95ZZZX1723), Mar 14, 1995: STRUT. DEFLATED. FLL - FLT 307 - ON TAKEOFF, UNABLE TO GET NOSE GEAR UP INDICATION. NOSE GEAR DOOR APPEARED TO STAY DOWN OR IN TRANSIT. CYCLED GEAR DOWN, ALL INDICATIONS NORMAL.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Chompo AL18 aircraft: https://openairdocs.org/model/chompo-al18/aircraft.md
- The Lycoming YIO-390 series engine: https://openairdocs.org/engine/lycoming-yio-390-series.md

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