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Tower Inspection

Every climb filed before you leave the site.

Every climb, photo and deficiency on a tower kept in one history until the repair is checked, light outages logged with the times the FCC asks for, and a report the tower owner opens from a link.

Open your free Tower Inspection register

Free for five towers, no card. See a sample tower inspection report

Free tool: next due date

Enter the date and the next one appears here.

Your customer sets this interval; no rule fixes one.

The rules, with where each one came from.

Each date this app counts and each check it runs on a save is listed here with its source and the day we last read it. Where a rule lives in a paid standard, we cite it and keep the same facts in our own layout; we never copy the standard's text or forms.

9

sourced rules in this trade, each read on or after Oct 29, 2026.

Dates it counts

  1. Structural inspection: 1 to 10 years, set on each tower as its structural inspection interval, from the last climb.Set per customer; no rule fixes this interval.
    Your contract
  2. Light controls and alarm check: 3 months from the last light controls and alarm check.From 47 CFR 17.47(b) Inspection of antenna structure lights (Cornell LII), checked Oct 29, 2026.
    Rule

What it checks when you save

  1. On a registered, lit tower, the lights are checked at least once every 24 hours, by eye or by a working automatic indicator, unless an automatic alarm system watches them.From 47 CFR 17.47(a) Inspection of antenna structure lights (Cornell LII), checked Oct 29, 2026.
    For reference
  2. The 3-month controls check is not needed where the FCC has accepted the owner's certification that its monitoring system is self-diagnostic.From 47 CFR 17.47(c) Inspection of antenna structure lights (Cornell LII), checked Oct 29, 2026.
    For reference
  3. A top light or flashing obstruction light that is out or failing and not fixed within 30 minutes is reported to the FAA at once, and the FAA is told again as soon as it is back on.From 47 CFR 17.48(a) Notification of extinguishment or improper functioning of lights (Cornell LII), checked Oct 29, 2026.
    For reference
  4. A steady side light that is out is fixed as soon as practicable, and the FAA does not need a report.From 47 CFR 17.48(b) Notification of extinguishment or improper functioning of lights (Cornell LII), checked Oct 29, 2026.
    For reference
  5. Each light outage is written down with what failed, when it was seen, when the FAA was told, and when and how it was fixed.From 47 CFR 17.49 Recording of antenna structure light inspections (Cornell LII), checked Oct 29, 2026.
    For reference
  6. Light outage records are kept for two years and shown to the FCC on request.From 47 CFR 17.49 Recording of antenna structure light inspections (Cornell LII), checked Oct 29, 2026.
    Stops the save
  7. The tower's FCC registration number is posted where it can be read from the nearest public road or path, on the fence or gate where there is one.From 47 CFR 17.4 Antenna structure registration (Cornell LII), checked Oct 29, 2026.
    For reference
  8. A tower that must be painted is cleaned or repainted as often as it takes to stay clearly visible, judged against the FAA's in-service aviation orange tolerance chart.From 47 CFR 17.50 Cleaning and repainting (Cornell LII), checked Oct 29, 2026.
    For reference

Asked, and answered from the rule.

How often must tower light controls and alarms be inspected?

  1. Light controls and alarm check: 3 months from the last light controls and alarm check.From 47 CFR 17.47(b) Inspection of antenna structure lights (Cornell LII), checked Oct 29, 2026.
  2. The 3-month controls check is not needed where the FCC has accepted the owner's certification that its monitoring system is self-diagnostic.From 47 CFR 17.47(c) Inspection of antenna structure lights (Cornell LII), checked Oct 29, 2026.

When does a tower light outage have to be reported to the FAA?

  1. A top light or flashing obstruction light that is out or failing and not fixed within 30 minutes is reported to the FAA at once, and the FAA is told again as soon as it is back on.From 47 CFR 17.48(a) Notification of extinguishment or improper functioning of lights (Cornell LII), checked Oct 29, 2026.
  2. A steady side light that is out is fixed as soon as practicable, and the FAA does not need a report.From 47 CFR 17.48(b) Notification of extinguishment or improper functioning of lights (Cornell LII), checked Oct 29, 2026.

How long must a tower light outage record be kept?

  1. Each light outage is written down with what failed, when it was seen, when the FAA was told, and when and how it was fixed.From 47 CFR 17.49 Recording of antenna structure light inspections (Cornell LII), checked Oct 29, 2026.
  2. Light outage records are kept for two years and shown to the FCC on request.From 47 CFR 17.49 Recording of antenna structure light inspections (Cornell LII), checked Oct 29, 2026.

What it keeps for you.

Tower

Owner's site number, FCC registration number (ASR), Structure, Height above ground, Guy levels, and more.

Light outage

Seen out or failing at, What was out or failing, Which light, FAA told at, NOTAM number, and more.

What your client receives.

The tower inspection report, as the app issues it the moment the climb is saved: signed, dated and frozen, with what is next due. This one is filled with invented records so you can read it before you sign up.

Building owners read every report filed to them in one binder, free.

Sample Inspection Co. (fictional) · Tower Inspection

Tower inspection report

Owner's site number 1

Tower

Owner's site number
Owner's site number 1
FCC registration number (ASR)
AS-4100
Structure
Guyed
Height above ground
1 ft

and 8 more fields

Climb

Scheduled
Apr 2, 2026
Completed
Apr 2, 2026
Status
Completed

Climb

Registration number sign readable from the road or gatePass
Fence, gate, locks and signs in placePass
Foundations: cracks, settling, standing water, erosionPass
Ground leads attached, none cut or missingPass
Legs and braces: none bent, cracked or missingPass
Bolts and connections tight, none missingPass

and 8 more on the full report

Readings

Out of plumb at the topNot takenRecorded
Twist at the topNot takenRecorded

Photos

No photos on file.

Findings

No findings on file.

Signature

Not signed in the app; signed on paper if at all.

Next due

Light controls and alarm checkDec 11, 2026Set by rule
Structural inspectionSep 1, 2028Set by your contract

A recordkeeping aid. It does not certify compliance and is not legal advice.

Every name, date and number on this sample is invented.

What Tower Inspection costs.

Free

$0
  • 5 towers
  • 1 person

Solo

$9 a monthFounders price; list $19
  • 100 towers
  • 2 people

Crew

$24 a monthFounders price; list $49
  • 750 towers
  • 10 people

Company

$49 a monthFounders price; list $99
  • 5,000 towers
  • 25 people

All-Access

$74 a monthFounders price; list $149
  • 5,000 towers
  • 25 people
  • The same limits in every trade
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Your trade

Tell us what your inspector asks for, and we will build it into Tower Inspection.

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