FIRMS code

L477 HAWTHORNE AVIATION

Deleted Inspection facility

This code is deleted in CBP's FIRMS list. Don't use it on new filings. FIRMSapi keeps deleted codes so lookups of old paperwork still resolve; check the port listing for a replacement.

Facility details

FIRMS code: L477
Name: HAWTHORNE AVIATION
Address: CHAS INTL ARPT
NORTH CHARLESTON, SC 29406
Status: Deleted (D)
Facility type: Inspection facility (05)
CBP port: Charleston, SC (1601)
CBP region: 4
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate L477 before you file

Validation fails L477: it's deleted, the reject ACE returns as 159. Search the port for an active replacement.

curl https://api.firmsapi.com/v1/validate \
  -H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
  -d '{"code":"L477","port":"1601","use":"location_of_goods"}'

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Other codes at this address

Many facilities hold several FIRMS codes, for example one per facility type or operator.

Code	Name	Type	Status
L434	EASTERN AIR LINES	Inspection facility	Deleted
L435	U.S. Airways	Rail or air terminal	Deleted
L464	UNITED AIRLINES	Rail or air terminal	Deleted

Source: U.S. Customs and Border Protection FIRMS code list, data as of 2026-10-23. FIRMSapi is not affiliated with CBP; confirm bond status and filing details in ACE.