Emb-140 first officer reported loss of multiple pitot/static related components.

Attributes
ACN	1208283
Time
Date	201410
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	EMB ERJ 140 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Pitot-Static System
Person 1
Function	First Officer Pilot Flying
Events
Anomaly	Aircraft Equipment Problem Less Severe

Narrative:

Departing runway 18L; above 80kts received a caution EICAS message and captain stated 'continue'. In the climb; we began to receive intermittent 'IAS' comparator alerts on pfd 1 & 2 airspeed indicators. Continued the departure climb to 10;000 feet at which time the difference in airspeeds continually got more substantial. During this time we also received intermittent 'sps advanced' cautions. We ran the 'unreliable airpseed' checklist; decided to return to [departure airport]; declared an emergency. The captain briefed the flight attendant and we landed flaps 45 degrees; below max landing weight. Cause: apparent issue with pitot-static system.

Original NASA ASRS Text

Title: EMB-140 First Officer reported loss of multiple pitot/static related components.

Narrative: Departing runway 18L; above 80kts received a Caution EICAS message and captain stated 'continue'. In the climb; we began to receive intermittent 'IAS' comparator alerts on PFD 1 & 2 airspeed indicators. Continued the departure climb to 10;000 feet at which time the difference in airspeeds continually got more substantial. During this time we also received intermittent 'SPS Advanced' Cautions. We ran the 'Unreliable Airpseed' checklist; decided to return to [departure airport]; declared an emergency. The captain briefed the flight attendant and we landed flaps 45 degrees; below max landing weight. Cause: Apparent issue with pitot-static system.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.