Universal Licensing System
89SG
Boston Aviation Services Inc
License details
| ULS identifier | 209875 |
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| Call sign | 89SG |
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| Radio service | AC |
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| Status | E |
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| Grant date | 1999-05-28 |
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| Expiration | 2009-05-28 |
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| Cancellation | 2009-08-01 |
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| Source archive | l_aircr.zip |
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| Dataset refreshed | 2026-08-02 01:40:38 |
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Licensee
| Name | Boston Aviation Services Inc |
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| Applicant type | C |
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| FRN | 0003614443 |
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| Location | Cambridge, MA |
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| Address | 104 Mt. Auburn St., Cambridge, MA, 02138 |
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License history
| Date | File or call sign | Action |
|---|
| 2009-08-01 | 89SG | LIEXP |
| 2009-03-02 | 89SG | LETRES |
| 1999-05-28 | 89SG | LIISS |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 209875 | 2026-08-02 01:38:08 | Source Primary |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | 89SG | ULS 209875 | 2026-08-02 01:40:38 |
| Status | E | ULS 209875 | 2026-08-02 01:40:38 |
| Service | AC | ULS 209875 | 2026-08-02 01:40:38 |
| Grant Date | 1999-05-28 | ULS 209875 | 2026-08-02 01:40:38 |
| Expiration Date | 2009-05-28 | ULS 209875 | 2026-08-02 01:40:38 |
| Cancellation Date | 2009-08-01 | ULS 209875 | 2026-08-02 01:40:38 |